257150521432 has 16 divisors (see below), whose sum is σ = 551036831760. Its totient is φ = 110207366304.

The previous prime is 257150521429. The next prime is 257150521447. The reversal of 257150521432 is 234125051752.

It is a super-2 number, since 2×257150521432² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257150521391 and 257150521400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2295986743 + ... + 2295986854.

It is an arithmetic number, because the mean of its divisors is an integer number (34439801985).

Almost surely, 2^257150521432 is an apocalyptic number.

It is an amenable number.

257150521432 is an abundant number, since it is smaller than the sum of its proper divisors (293886310328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257150521432 is a wasteful number, since it uses less digits than its factorization.

257150521432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591973610 (or 4591973606 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 257150521432 in words is "two hundred fifty-seven billion, one hundred fifty million, five hundred twenty-one thousand, four hundred thirty-two".