257261016 has 32 divisors (see below), whose sum is σ = 647478000. Its totient is φ = 85176960.

The previous prime is 257260999. The next prime is 257261027. The reversal of 257261016 is 610162752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32395 + ... + 39546.

Almost surely, 2^257261016 is an apocalyptic number.

It is an amenable number.

257261016 is an abundant number, since it is smaller than the sum of its proper divisors (390216984).

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

257261016 is a wasteful number, since it uses less digits than its factorization.

257261016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72099 (or 72095 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 257261016 is about 16039.3583412804. The cubic root of 257261016 is about 636.0012855478.

The spelling of 257261016 in words is "two hundred fifty-seven million, two hundred sixty-one thousand, sixteen".