551310231204 has 48 divisors (see below), whose sum is σ = 1448902607040. Its totient is φ = 181252676160.

The previous prime is 551310231133. The next prime is 551310231211. The reversal of 551310231204 is 402132013155.

551310231204 is a `hidden beast` number, since 5 + 513 + 1 + 0 + 23 + 120 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 34955982 + ... + 34971749.

It is an arithmetic number, because the mean of its divisors is an integer number (30185470980).

Almost surely, 2^551310231204 is an apocalyptic number.

551310231204 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

551310231204 is an abundant number, since it is smaller than the sum of its proper divisors (897592375836).

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

551310231204 is a wasteful number, since it uses less digits than its factorization.

551310231204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69927817 (or 69927809 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 551310231204 its reverse (402132013155), we get a palindrome (953442244359).

The spelling of 551310231204 in words is "five hundred fifty-one billion, three hundred ten million, two hundred thirty-one thousand, two hundred four".