551544072 has 16 divisors (see below), whose sum is σ = 1378860240. Its totient is φ = 183848016.

The previous prime is 551544061. The next prime is 551544113. The reversal of 551544072 is 270445155.

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, 11490478 + ... + 11490525.

It is an arithmetic number, because the mean of its divisors is an integer number (86178765).

Almost surely, 2^551544072 is an apocalyptic number.

It is an amenable number.

551544072 is an abundant number, since it is smaller than the sum of its proper divisors (827316168).

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

551544072 is a wasteful number, since it uses less digits than its factorization.

551544072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22981012 (or 22981008 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 551544072 is about 23484.9754524036. The cubic root of 551544072 is about 820.0872760565.

The spelling of 551544072 in words is "five hundred fifty-one million, five hundred forty-four thousand, seventy-two".