551313955 has 4 divisors (see below), whose sum is σ = 661576752. Its totient is φ = 441051160.

The previous prime is 551313929. The next prime is 551314007. The reversal of 551313955 is 559313155.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 551313955 - 2¹³ = 551305763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55131391 + ... + 55131400.

It is an arithmetic number, because the mean of its divisors is an integer number (165394188).

Almost surely, 2^551313955 is an apocalyptic number.

551313955 is a deficient number, since it is larger than the sum of its proper divisors (110262797).

551313955 is a wasteful number, since it uses less digits than its factorization.

551313955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110262796.

The product of its digits is 50625, while the sum is 37.

The square root of 551313955 is about 23480.0757026037. The cubic root of 551313955 is about 819.9732070365.

The spelling of 551313955 in words is "five hundred fifty-one million, three hundred thirteen thousand, nine hundred fifty-five".