255769564 has 12 divisors (see below), whose sum is σ = 471154600. Its totient is φ = 121153968.

The previous prime is 255769559. The next prime is 255769597. The reversal of 255769564 is 465967552.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

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, 1682619 + ... + 1682770.

Almost surely, 2^255769564 is an apocalyptic number.

It is an amenable number.

255769564 is a deficient number, since it is larger than the sum of its proper divisors (215385036).

255769564 is a wasteful number, since it uses less digits than its factorization.

255769564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365412 (or 3365410 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 49.

The square root of 255769564 is about 15992.7972537640. The cubic root of 255769564 is about 634.7698457044.

The spelling of 255769564 in words is "two hundred fifty-five million, seven hundred sixty-nine thousand, five hundred sixty-four".