257525283255 has 32 divisors (see below), whose sum is σ = 418932085440. Its totient is φ = 135051079680.

The previous prime is 257525283251. The next prime is 257525283283. The reversal of 257525283255 is 552382525752.

It is a happy number.

It is not a de Polignac number, because 257525283255 - 2² = 257525283251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257525283198 and 257525283207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257525283251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2855229 + ... + 2944041.

It is an arithmetic number, because the mean of its divisors is an integer number (13091627670).

Almost surely, 2^257525283255 is an apocalyptic number.

257525283255 is a deficient number, since it is larger than the sum of its proper divisors (161406802185).

257525283255 is a wasteful number, since it uses less digits than its factorization.

257525283255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92051.

The product of its digits is 8400000, while the sum is 51.

The spelling of 257525283255 in words is "two hundred fifty-seven billion, five hundred twenty-five million, two hundred eighty-three thousand, two hundred fifty-five".