257525142 has 16 divisors (see below), whose sum is σ = 588628992. Its totient is φ = 73578600.

The previous prime is 257525123. The next prime is 257525159. The reversal of 257525142 is 241525752.

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, 3065734 + ... + 3065817.

It is an arithmetic number, because the mean of its divisors is an integer number (36789312).

Almost surely, 2^257525142 is an apocalyptic number.

257525142 is an abundant number, since it is smaller than the sum of its proper divisors (331103850).

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

257525142 is a wasteful number, since it uses less digits than its factorization.

257525142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131563.

The product of its digits is 28000, while the sum is 33.

The square root of 257525142 is about 16047.5899125071. The cubic root of 257525142 is about 636.2188687400.

The spelling of 257525142 in words is "two hundred fifty-seven million, five hundred twenty-five thousand, one hundred forty-two".