264559956 has 24 divisors (see below), whose sum is σ = 619592064. Its totient is φ = 87860160.

The previous prime is 264559949. The next prime is 264559973. The reversal of 264559956 is 659955462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 264559899 and 264559908.

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, 37425 + ... + 43928.

It is an arithmetic number, because the mean of its divisors is an integer number (25816336).

Almost surely, 2^264559956 is an apocalyptic number.

It is an amenable number.

264559956 is an abundant number, since it is smaller than the sum of its proper divisors (355032108).

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

264559956 is a wasteful number, since it uses less digits than its factorization.

264559956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81631 (or 81629 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 51.

The square root of 264559956 is about 16265.2991365053. The cubic root of 264559956 is about 641.9601007802.

The spelling of 264559956 in words is "two hundred sixty-four million, five hundred fifty-nine thousand, nine hundred fifty-six".