265256464 has 20 divisors (see below), whose sum is σ = 560656080. Its totient is φ = 120571040.

The previous prime is 265256461. The next prime is 265256471. The reversal of 265256464 is 464652562.

It is not an unprimeable number, because it can be changed into a prime (265256461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753394 + ... + 753745.

It is an arithmetic number, because the mean of its divisors is an integer number (28032804).

Almost surely, 2^265256464 is an apocalyptic number.

It is an amenable number.

265256464 is an abundant number, since it is smaller than the sum of its proper divisors (295399616).

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

265256464 is a wasteful number, since it uses less digits than its factorization.

265256464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507158 (or 1507152 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 265256464 is about 16286.6959202903. The cubic root of 265256464 is about 642.5229707100.

The spelling of 265256464 in words is "two hundred sixty-five million, two hundred fifty-six thousand, four hundred sixty-four".