551422160 has 20 divisors (see below), whose sum is σ = 1282056708. Its totient is φ = 220568832.

The previous prime is 551422159. The next prime is 551422169. The reversal of 551422160 is 61224155.

It can be written as a sum of positive squares in 2 ways, for example, as 109077136 + 442345024 = 10444^2 + 21032^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551422169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3446309 + ... + 3446468.

Almost surely, 2^551422160 is an apocalyptic number.

It is an amenable number.

551422160 is an abundant number, since it is smaller than the sum of its proper divisors (730634548).

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

551422160 is a wasteful number, since it uses less digits than its factorization.

551422160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892790 (or 6892784 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 551422160 is about 23482.3797771861. The cubic root of 551422160 is about 820.0268482187.

The spelling of 551422160 in words is "five hundred fifty-one million, four hundred twenty-two thousand, one hundred sixty".