55872090 has 48 divisors (see below), whose sum is σ = 145667808. Its totient is φ = 14858208.

The previous prime is 55872079. The next prime is 55872121. The reversal of 55872090 is 9027855.

It is a nialpdrome in base 13.

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, 46477 + ... + 47663.

It is an arithmetic number, because the mean of its divisors is an integer number (3034746).

Almost surely, 2^55872090 is an apocalyptic number.

55872090 is an abundant number, since it is smaller than the sum of its proper divisors (89795718).

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

55872090 is a wasteful number, since it uses less digits than its factorization.

55872090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 55872090 is about 7474.7635414105. The cubic root of 55872090 is about 382.2947251754.

The spelling of 55872090 in words is "fifty-five million, eight hundred seventy-two thousand, ninety".