551313831600 has 480 divisors, whose sum is σ = 2270304532480. Its totient is φ = 126013190400.

The previous prime is 551313831587. The next prime is 551313831631. The reversal of 551313831600 is 6138313155.

551313831600 is a `hidden beast` number, since 5 + 5 + 1 + 3 + 13 + 8 + 31 + 600 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6078585 + ... + 6168615.

Almost surely, 2^551313831600 is an apocalyptic number.

551313831600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551313831600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1135152266240).

551313831600 is an abundant number, since it is smaller than the sum of its proper divisors (1718990700880).

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

551313831600 is an equidigital number, since it uses as much as digits as its factorization.

551313831600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90077 (or 90048 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 551313831600 in words is "five hundred fifty-one billion, three hundred thirteen million, eight hundred thirty-one thousand, six hundred".