551313545432 has 32 divisors (see below), whose sum is σ = 1119816465600. Its totient is φ = 254452397472.

The previous prime is 551313545417. The next prime is 551313545509. The reversal of 551313545432 is 234545313155.

It is a self number, because there is not a number n which added to its sum of digits gives 551313545432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15666128 + ... + 15701279.

It is an arithmetic number, because the mean of its divisors is an integer number (34994264550).

Almost surely, 2^551313545432 is an apocalyptic number.

551313545432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

551313545432 is an abundant number, since it is smaller than the sum of its proper divisors (568502920168).

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

551313545432 is a wasteful number, since it uses less digits than its factorization.

551313545432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31367452 (or 31367422 counting only the distinct ones).

The product of its digits is 540000, while the sum is 41.

Adding to 551313545432 its reverse (234545313155), we get a palindrome (785858858587).

The spelling of 551313545432 in words is "five hundred fifty-one billion, three hundred thirteen million, five hundred forty-five thousand, four hundred thirty-two".