551632896 has 240 divisors, whose sum is σ = 1730097600. Its totient is φ = 173408256.

The previous prime is 551632883. The next prime is 551632933. The reversal of 551632896 is 698236155.

551632896 is a `hidden beast` number, since 5 + 5 + 1 + 632 + 8 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12828651 + ... + 12828693.

It is an arithmetic number, because the mean of its divisors is an integer number (7208740).

Almost surely, 2^551632896 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 551632896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865048800).

551632896 is an abundant number, since it is smaller than the sum of its proper divisors (1178464704).

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

551632896 is an equidigital number, since it uses as much as digits as its factorization.

551632896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 77 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 551632896 is about 23486.8664576610. The cubic root of 551632896 is about 820.1312976352.

The spelling of 551632896 in words is "five hundred fifty-one million, six hundred thirty-two thousand, eight hundred ninety-six".