555225664 has 84 divisors (see below), whose sum is σ = 1309274496. Its totient is φ = 232829184.

The previous prime is 555225653. The next prime is 555225683. The reversal of 555225664 is 466522555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145509 + ... + 149275.

Almost surely, 2^555225664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555225664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654637248).

555225664 is an abundant number, since it is smaller than the sum of its proper divisors (754048832).

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

555225664 is a wasteful number, since it uses less digits than its factorization.

555225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840 (or 3823 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The square root of 555225664 is about 23563.2269436934. The cubic root of 555225664 is about 821.9079427181.

The spelling of 555225664 in words is "five hundred fifty-five million, two hundred twenty-five thousand, six hundred sixty-four".