551295660 has 48 divisors (see below), whose sum is σ = 1544741856. Its totient is φ = 146906112.

The previous prime is 551295623. The next prime is 551295683. The reversal of 551295660 is 66592155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116052 + ... + 120708.

It is an arithmetic number, because the mean of its divisors is an integer number (32182122).

Almost surely, 2^551295660 is an apocalyptic number.

It is an amenable number.

551295660 is an abundant number, since it is smaller than the sum of its proper divisors (993446196).

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

551295660 is a wasteful number, since it uses less digits than its factorization.

551295660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642 (or 6640 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 551295660 is about 23479.6861137452. The cubic root of 551295660 is about 819.9641368412.

The spelling of 551295660 in words is "five hundred fifty-one million, two hundred ninety-five thousand, six hundred sixty".