65255880 has 64 divisors (see below), whose sum is σ = 206078400. Its totient is φ = 16485120.

The previous prime is 65255873. The next prime is 65255893. The reversal of 65255880 is 8855256.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12031 + ... + 16590.

It is an arithmetic number, because the mean of its divisors is an integer number (3219975).

Almost surely, 2^65255880 is an apocalyptic number.

65255880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65255880 is an abundant number, since it is smaller than the sum of its proper divisors (140822520).

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

65255880 is a wasteful number, since it uses less digits than its factorization.

65255880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28654 (or 28650 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 65255880 is about 8078.1111653653. Note that the first 4 decimals coincide. The cubic root of 65255880 is about 402.5994867434.

The spelling of 65255880 in words is "sixty-five million, two hundred fifty-five thousand, eight hundred eighty".