55799190 has 48 divisors (see below), whose sum is σ = 150087600. Its totient is φ = 14366016.

The previous prime is 55799147. The next prime is 55799203. The reversal of 55799190 is 9199755.

55799190 is a `hidden beast` number, since 557 + 9 + 9 + 1 + 90 = 666.

It is a super-2 number, since 2×55799190² = 6227099209312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 8080 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (3126825).

Almost surely, 2^55799190 is an apocalyptic number.

55799190 is an abundant number, since it is smaller than the sum of its proper divisors (94288410).

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

55799190 is a wasteful number, since it uses less digits than its factorization.

55799190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21421 (or 21418 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 45.

The square root of 55799190 is about 7469.8855412918. The cubic root of 55799190 is about 382.1283844304.

The spelling of 55799190 in words is "fifty-five million, seven hundred ninety-nine thousand, one hundred ninety".