55894990 has 16 divisors (see below), whose sum is σ = 100769040. Its totient is φ = 22322880.

The previous prime is 55894987. The next prime is 55895009. The reversal of 55894990 is 9949855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866 + ... + 10954.

It is an arithmetic number, because the mean of its divisors is an integer number (6298065).

Almost surely, 2^55894990 is an apocalyptic number.

55894990 is a deficient number, since it is larger than the sum of its proper divisors (44874050).

55894990 is a wasteful number, since it uses less digits than its factorization.

55894990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8787.

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 55894990 is about 7476.2952055146. The cubic root of 55894990 is about 382.3469477515.

The spelling of 55894990 in words is "fifty-five million, eight hundred ninety-four thousand, nine hundred ninety".