551711172 has 24 divisors (see below), whose sum is σ = 1288109536. Its totient is φ = 183791808.

The previous prime is 551711159. The next prime is 551711177. The reversal of 551711172 is 271117155.

It is a super-2 number, since 2×551711172² = 608770434619227168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551711177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7923 + ... + 34149.

Almost surely, 2^551711172 is an apocalyptic number.

It is an amenable number.

551711172 is an abundant number, since it is smaller than the sum of its proper divisors (736398364).

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

551711172 is a wasteful number, since it uses less digits than its factorization.

551711172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27987 (or 27985 counting only the distinct ones).

The product of its digits is 2450, while the sum is 30.

The square root of 551711172 is about 23488.5327766551. The cubic root of 551711172 is about 820.1700876600.

The spelling of 551711172 in words is "five hundred fifty-one million, seven hundred eleven thousand, one hundred seventy-two".