551308172 has 12 divisors (see below), whose sum is σ = 966556920. Its totient is φ = 275149056.

The previous prime is 551308171. The next prime is 551308187. The reversal of 551308172 is 271803155.

It is not an unprimeable number, because it can be changed into a prime (551308171) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 123797 + ... + 128172.

It is an arithmetic number, because the mean of its divisors is an integer number (80546410).

Almost surely, 2^551308172 is an apocalyptic number.

It is an amenable number.

551308172 is a deficient number, since it is larger than the sum of its proper divisors (415248748).

551308172 is a wasteful number, since it uses less digits than its factorization.

551308172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252520 (or 252518 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 551308172 is about 23479.9525553183. The cubic root of 551308172 is about 819.9703399940.

The spelling of 551308172 in words is "five hundred fifty-one million, three hundred eight thousand, one hundred seventy-two".