257125652522 has 16 divisors (see below), whose sum is σ = 389322364032. Its totient is φ = 127356786960.

The previous prime is 257125652521. The next prime is 257125652527. The reversal of 257125652522 is 225256521752.

It is a super-2 number, since 2×257125652522² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257125652521) 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, 1215854 + ... + 1411577.

It is an arithmetic number, because the mean of its divisors is an integer number (24332647752).

Almost surely, 2^257125652522 is an apocalyptic number.

257125652522 is a deficient number, since it is larger than the sum of its proper divisors (132196711510).

257125652522 is a wasteful number, since it uses less digits than its factorization.

257125652522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627893.

The product of its digits is 840000, while the sum is 44.

The spelling of 257125652522 in words is "two hundred fifty-seven billion, one hundred twenty-five million, six hundred fifty-two thousand, five hundred twenty-two".