551903652 has 48 divisors (see below), whose sum is σ = 1450482880. Its totient is φ = 181445184.

The previous prime is 551903629. The next prime is 551903663. The reversal of 551903652 is 256309155.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27118 + ... + 42885.

Almost surely, 2^551903652 is an apocalyptic number.

It is an amenable number.

551903652 is an abundant number, since it is smaller than the sum of its proper divisors (898579228).

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

551903652 is a wasteful number, since it uses less digits than its factorization.

551903652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70089 (or 70081 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 551903652 is about 23492.6297378561. The cubic root of 551903652 is about 820.2654563912.

The spelling of 551903652 in words is "five hundred fifty-one million, nine hundred three thousand, six hundred fifty-two".