551162880 has 264 divisors, whose sum is σ = 1984967712. Its totient is φ = 146644992.

The previous prime is 551162867. The next prime is 551162891. The reversal of 551162880 is 88261155.

551162880 is a `hidden beast` number, since 5 + 511 + 62 + 8 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1243939 + ... + 1244381.

Almost surely, 2^551162880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551162880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992483856).

551162880 is an abundant number, since it is smaller than the sum of its proper divisors (1433804832).

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

551162880 is an equidigital number, since it uses as much as digits as its factorization.

551162880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 551162880 is about 23476.8583928941. The cubic root of 551162880 is about 819.8983018830.

The spelling of 551162880 in words is "five hundred fifty-one million, one hundred sixty-two thousand, eight hundred eighty".