257502710325 has 48 divisors (see below), whose sum is σ = 486811131776. Its totient is φ = 117654163200.

The previous prime is 257502710317. The next prime is 257502710357. The reversal of 257502710325 is 523017205752.

It is not a de Polignac number, because 257502710325 - 2³ = 257502710317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 887955 + ... + 1141695.

Almost surely, 2^257502710325 is an apocalyptic number.

257502710325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257502710325 is a deficient number, since it is larger than the sum of its proper divisors (229308421451).

257502710325 is a wasteful number, since it uses less digits than its factorization.

257502710325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255694 (or 255689 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 257502710325 in words is "two hundred fifty-seven billion, five hundred two million, seven hundred ten thousand, three hundred twenty-five".