555972372 has 18 divisors (see below), whose sum is σ = 1405374698. Its totient is φ = 185324112.

The previous prime is 555972371. The next prime is 555972401. The reversal of 555972372 is 273279555.

555972372 is a `hidden beast` number, since 5 + 559 + 7 + 23 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 511935876 + 44036496 = 22626^2 + 6636^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555972371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7721803 + ... + 7721874.

Almost surely, 2^555972372 is an apocalyptic number.

It is an amenable number.

555972372 is an abundant number, since it is smaller than the sum of its proper divisors (849402326).

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

555972372 is a wasteful number, since it uses less digits than its factorization.

555972372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15443687 (or 15443682 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 555972372 is about 23579.0663937315. The cubic root of 555972372 is about 822.2762315982.

The spelling of 555972372 in words is "five hundred fifty-five million, nine hundred seventy-two thousand, three hundred seventy-two".