55287892 has 12 divisors (see below), whose sum is σ = 105549696. Its totient is φ = 25130840.

The previous prime is 55287887. The next prime is 55287901. The reversal of 55287892 is 29878255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628228 + ... + 628315.

It is an arithmetic number, because the mean of its divisors is an integer number (8795808).

Almost surely, 2^55287892 is an apocalyptic number.

It is an amenable number.

55287892 is a deficient number, since it is larger than the sum of its proper divisors (50261804).

55287892 is a wasteful number, since it uses less digits than its factorization.

55287892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256558 (or 1256556 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The square root of 55287892 is about 7435.5828285347. The cubic root of 55287892 is about 380.9576308334.

The spelling of 55287892 in words is "fifty-five million, two hundred eighty-seven thousand, eight hundred ninety-two".