551904144 has 40 divisors (see below), whose sum is σ = 1555367712. Its totient is φ = 167243520.

The previous prime is 551904137. The next prime is 551904161. The reversal of 551904144 is 441409155.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 522109 + ... + 523164.

Almost surely, 2^551904144 is an apocalyptic number.

It is an amenable number.

551904144 is an abundant number, since it is smaller than the sum of its proper divisors (1003463568).

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

551904144 is a wasteful number, since it uses less digits than its factorization.

551904144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045295 (or 1045289 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 551904144 is about 23492.6402092230. The cubic root of 551904144 is about 820.2657001357.

The spelling of 551904144 in words is "five hundred fifty-one million, nine hundred four thousand, one hundred forty-four".