551283264 has 84 divisors (see below), whose sum is σ = 1805903424. Its totient is φ = 157508352.

The previous prime is 551283241. The next prime is 551283281. The reversal of 551283264 is 462382155.

551283264 is a `hidden beast` number, since 5 + 512 + 83 + 2 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 64332 + ... + 72395.

Almost surely, 2^551283264 is an apocalyptic number.

It is an amenable number.

551283264 is an abundant number, since it is smaller than the sum of its proper divisors (1254620160).

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

551283264 is a wasteful number, since it uses less digits than its factorization.

551283264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136752 (or 136739 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 551283264 is about 23479.4221393969. The cubic root of 551283264 is about 819.9579911059.

The spelling of 551283264 in words is "five hundred fifty-one million, two hundred eighty-three thousand, two hundred sixty-four".