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525257041 = 17137225529
BaseRepresentation
bin11111010011101…
…100100101010001
31100121100211012111
4133103230211101
52033431211131
6124042025321
716005416431
oct3723544521
91317324174
10525257041
1124a548431
12127aa8241
1384a892aa
144da8c2c1
15311a6ab1
hex1f4ec951

525257041 has 8 divisors (see below), whose sum is σ = 560216520. Its totient is φ = 490748928.

The previous prime is 525257039. The next prime is 525257059. The reversal of 525257041 is 140752525.

It can be written as a sum of positive squares in 4 ways, for example, as 90326016 + 434931025 = 9504^2 + 20855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 525257041 - 21 = 525257039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525256994 and 525257012.

It is not an unprimeable number, because it can be changed into a prime (525257081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110436 + ... + 115093.

It is an arithmetic number, because the mean of its divisors is an integer number (70027065).

Almost surely, 2525257041 is an apocalyptic number.

It is an amenable number.

525257041 is a deficient number, since it is larger than the sum of its proper divisors (34959479).

525257041 is a wasteful number, since it uses less digits than its factorization.

525257041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225683.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 525257041 is about 22918.4868828638. The cubic root of 525257041 is about 806.8459578214.

The spelling of 525257041 in words is "five hundred twenty-five million, two hundred fifty-seven thousand, forty-one".

Divisors: 1 17 137 2329 225529 3833993 30897473 525257041