555331380 has 24 divisors (see below), whose sum is σ = 1554928032. Its totient is φ = 148088352.

The previous prime is 555331363. The next prime is 555331393. The reversal of 555331380 is 83133555.

It is a happy number.

It is a super-2 number, since 2×555331380² = 616785883225408800, which contains 22 as substring.

It is a congruent number.

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, 4627702 + ... + 4627821.

It is an arithmetic number, because the mean of its divisors is an integer number (64788668).

Almost surely, 2^555331380 is an apocalyptic number.

It is an amenable number.

555331380 is an abundant number, since it is smaller than the sum of its proper divisors (999596652).

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

555331380 is a wasteful number, since it uses less digits than its factorization.

555331380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9255535 (or 9255533 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 555331380 is about 23565.4700780612. The cubic root of 555331380 is about 821.9601036751.

The spelling of 555331380 in words is "five hundred fifty-five million, three hundred thirty-one thousand, three hundred eighty".