257575030325 has 24 divisors (see below), whose sum is σ = 322667327136. Its totient is φ = 203949000000.

The previous prime is 257575030319. The next prime is 257575030327. The reversal of 257575030325 is 523030575752.

It is not a de Polignac number, because 257575030325 - 2¹⁸ = 257574768181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257575030327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7970450 + ... + 8002700.

It is an arithmetic number, because the mean of its divisors is an integer number (13444471964).

Almost surely, 2^257575030325 is an apocalyptic number.

257575030325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257575030325 is a deficient number, since it is larger than the sum of its proper divisors (65092296811).

257575030325 is a wasteful number, since it uses less digits than its factorization.

257575030325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35525 (or 35520 counting only the distinct ones).

The product of its (nonzero) digits is 1102500, while the sum is 44.

The spelling of 257575030325 in words is "two hundred fifty-seven billion, five hundred seventy-five million, thirty thousand, three hundred twenty-five".