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2513201525 = 52611648001
BaseRepresentation
bin1001010111001100…
…0110100101110101
320111011000212100222
42111303012211311
520121334422100
61053214344125
7116164601102
oct22563064565
96434025328
102513201525
11107a70055a
125a17bb045
133108a22c3
1419bac9aa9
15ea987485
hex95cc6975

2513201525 has 12 divisors (see below), whose sum is σ = 3167459844. Its totient is φ = 1977600000.

The previous prime is 2513201519. The next prime is 2513201533. The reversal of 2513201525 is 5251023152.

It can be written as a sum of positive squares in 6 ways, for example, as 958397764 + 1554803761 = 30958^2 + 39431^2 .

It is not a de Polignac number, because 2513201525 - 212 = 2513197429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2513201494 and 2513201503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 822476 + ... + 825525.

It is an arithmetic number, because the mean of its divisors is an integer number (263954987).

Almost surely, 22513201525 is an apocalyptic number.

2513201525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2513201525 is a deficient number, since it is larger than the sum of its proper divisors (654258319).

2513201525 is a wasteful number, since it uses less digits than its factorization.

2513201525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648072 (or 1648067 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2513201525 is about 50131.8414283776. The cubic root of 2513201525 is about 1359.5935789974.

Adding to 2513201525 its reverse (5251023152), we get a palindrome (7764224677).

The spelling of 2513201525 in words is "two billion, five hundred thirteen million, two hundred one thousand, five hundred twenty-five".

Divisors: 1 5 25 61 305 1525 1648001 8240005 41200025 100528061 502640305 2513201525