55920060 has 72 divisors (see below), whose sum is σ = 193860576. Its totient is φ = 12781440.

The previous prime is 55920049. The next prime is 55920077. The reversal of 55920060 is 6002955.

It is a super-2 number, since 2×55920060² = 6254106220807200, 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 23 ways as a sum of consecutive naturals, for example, 20931 + ... + 23450.

It is an arithmetic number, because the mean of its divisors is an integer number (2692508).

Almost surely, 2^55920060 is an apocalyptic number.

It is an amenable number.

55920060 is an abundant number, since it is smaller than the sum of its proper divisors (137940516).

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

55920060 is a wasteful number, since it uses less digits than its factorization.

55920060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44403 (or 44398 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 55920060 is about 7477.9716501201. The cubic root of 55920060 is about 382.4041025773.

The spelling of 55920060 in words is "fifty-five million, nine hundred twenty thousand, sixty".