551345672 has 32 divisors (see below), whose sum is σ = 1059246720. Its totient is φ = 268961280.

The previous prime is 551345659. The next prime is 551345681. The reversal of 551345672 is 276543155.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50093 + ... + 60099.

It is an arithmetic number, because the mean of its divisors is an integer number (33101460).

Almost surely, 2^551345672 is an apocalyptic number.

It is an amenable number.

551345672 is a deficient number, since it is larger than the sum of its proper divisors (507901048).

551345672 is a wasteful number, since it uses less digits than its factorization.

551345672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181 (or 10177 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 551345672 is about 23480.7510953121. The cubic root of 551345672 is about 819.9889310423.

It can be divided in two parts, 55134 and 5672, that added together give a palindrome (60806).

The spelling of 551345672 in words is "five hundred fifty-one million, three hundred forty-five thousand, six hundred seventy-two".