55399092 has 24 divisors (see below), whose sum is σ = 147731136. Its totient is φ = 15828288.

The previous prime is 55399087. The next prime is 55399103. The reversal of 55399092 is 29099355.

55399092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 329673 + ... + 329840.

It is an arithmetic number, because the mean of its divisors is an integer number (6155464).

Almost surely, 2^55399092 is an apocalyptic number.

It is an amenable number.

55399092 is an abundant number, since it is smaller than the sum of its proper divisors (92332044).

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

55399092 is a wasteful number, since it uses less digits than its factorization.

55399092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659527 (or 659525 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 42.

The square root of 55399092 is about 7443.0566301755. The cubic root of 55399092 is about 381.2128652535.

The spelling of 55399092 in words is "fifty-five million, three hundred ninety-nine thousand, ninety-two".