551894720 has 56 divisors (see below), whose sum is σ = 1415302224. Its totient is φ = 203774976.

The previous prime is 551894713. The next prime is 551894731. The reversal of 551894720 is 27498155.

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 7 ways as a sum of consecutive naturals, for example, 62174 + ... + 70493.

It is an arithmetic number, because the mean of its divisors is an integer number (25273254).

Almost surely, 2^551894720 is an apocalyptic number.

It is an amenable number.

551894720 is an abundant number, since it is smaller than the sum of its proper divisors (863407504).

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

551894720 is a wasteful number, since it uses less digits than its factorization.

551894720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132697 (or 132687 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 551894720 is about 23492.4396349123. The cubic root of 551894720 is about 820.2610313129.

The spelling of 551894720 in words is "five hundred fifty-one million, eight hundred ninety-four thousand, seven hundred twenty".