256919952 has 40 divisors (see below), whose sum is σ = 664399936. Its totient is φ = 85550976.

The previous prime is 256919933. The next prime is 256919977. The reversal of 256919952 is 259919652.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57213 + ... + 61539.

Almost surely, 2^256919952 is an apocalyptic number.

It is an amenable number.

256919952 is an abundant number, since it is smaller than the sum of its proper divisors (407479984).

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

256919952 is a wasteful number, since it uses less digits than its factorization.

256919952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575 (or 5569 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 256919952 is about 16028.7227189193. The cubic root of 256919952 is about 635.7201015117.

The spelling of 256919952 in words is "two hundred fifty-six million, nine hundred nineteen thousand, nine hundred fifty-two".