551620460 has 24 divisors (see below), whose sum is σ = 1160381376. Its totient is φ = 220271360.

The previous prime is 551620439. The next prime is 551620493. The reversal of 551620460 is 64026155.

It is a super-2 number, since 2×551620460² = 608570263781223200, which contains 22 as substring.

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, 11396 + ... + 35115.

It is an arithmetic number, because the mean of its divisors is an integer number (48349224).

Almost surely, 2^551620460 is an apocalyptic number.

It is an amenable number.

551620460 is an abundant number, since it is smaller than the sum of its proper divisors (608760916).

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

551620460 is a wasteful number, since it uses less digits than its factorization.

551620460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47113 (or 47111 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 551620460 is about 23486.6017124658. The cubic root of 551620460 is about 820.1251345815.

The spelling of 551620460 in words is "five hundred fifty-one million, six hundred twenty thousand, four hundred sixty".