265950864 has 105 divisors (see below), whose sum is σ = 777716499. Its totient is φ = 88063200.

The previous prime is 265950833. The next prime is 265950871. The reversal of 265950864 is 468059562.

The square root of 265950864 is 16308.

It is a perfect power (a square), and thus also a powerful number.

265950864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1761189 + ... + 1761339.

Almost surely, 2^265950864 is an apocalyptic number.

265950864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

265950864 is the 16308-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265950864

265950864 is an abundant number, since it is smaller than the sum of its proper divisors (511765635).

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

265950864 is an frugal number, since it uses more digits than its factorization.

265950864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The cubic root of 265950864 is about 643.0831571005.

Multiplying 265950864 by its product of nonzero digits (518400), we get a square (137868927897600 = 11741760²).

The spelling of 265950864 in words is "two hundred sixty-five million, nine hundred fifty thousand, eight hundred sixty-four".