551597872 has 40 divisors (see below), whose sum is σ = 1234011296. Its totient is φ = 233957376.

The previous prime is 551597869. The next prime is 551597897. The reversal of 551597872 is 278795155.

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, 14523 + ... + 36250.

Almost surely, 2^551597872 is an apocalyptic number.

It is an amenable number.

551597872 is an abundant number, since it is smaller than the sum of its proper divisors (682413424).

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

551597872 is a wasteful number, since it uses less digits than its factorization.

551597872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50885 (or 50879 counting only the distinct ones).

The product of its digits is 882000, while the sum is 49.

The square root of 551597872 is about 23486.1208376352. The cubic root of 551597872 is about 820.1139401457.

The spelling of 551597872 in words is "five hundred fifty-one million, five hundred ninety-seven thousand, eight hundred seventy-two".