257855952 has 40 divisors (see below), whose sum is σ = 667769760. Its totient is φ = 85740160.

The previous prime is 257855947. The next prime is 257855953. The reversal of 257855952 is 259558752.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257855953) 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, 13702 + ... + 26522.

It is an arithmetic number, because the mean of its divisors is an integer number (16694244).

Almost surely, 2^257855952 is an apocalyptic number.

It is an amenable number.

257855952 is an abundant number, since it is smaller than the sum of its proper divisors (409913808).

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

257855952 is a wasteful number, since it uses less digits than its factorization.

257855952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13251 (or 13245 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 48.

The square root of 257855952 is about 16057.8937597681. The cubic root of 257855952 is about 636.4911754958.

The spelling of 257855952 in words is "two hundred fifty-seven million, eight hundred fifty-five thousand, nine hundred fifty-two".