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2525500031 = 12012102831
BaseRepresentation
bin1001011010001000…
…0001001001111111
320112000011200202012
42112202001021333
520133012000111
61054334121435
7116404252565
oct22642011177
96460150665
102525500031
11108664060a
125a595027b
133132ba122
1419d5aba35
15ebab648b
hex9688127f

2525500031 has 4 divisors (see below), whose sum is σ = 2527604064. Its totient is φ = 2523396000.

The previous prime is 2525499997. The next prime is 2525500057. The reversal of 2525500031 is 1300055252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2525500031 - 26 = 2525499967 is a prime.

It is a super-2 number, since 2×25255000312 = 12756300813162001922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525500091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050215 + ... + 1052616.

It is an arithmetic number, because the mean of its divisors is an integer number (631901016).

Almost surely, 22525500031 is an apocalyptic number.

2525500031 is a deficient number, since it is larger than the sum of its proper divisors (2104033).

2525500031 is a wasteful number, since it uses less digits than its factorization.

2525500031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104032.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2525500031 is about 50254.3533537145. The cubic root of 2525500031 is about 1361.8077227900.

Adding to 2525500031 its reverse (1300055252), we get a palindrome (3825555283).

The spelling of 2525500031 in words is "two billion, five hundred twenty-five million, five hundred thousand, thirty-one".

Divisors: 1 1201 2102831 2525500031