55991498 has 16 divisors (see below), whose sum is σ = 85601664. Its totient is φ = 27461280.

The previous prime is 55991483. The next prime is 55991513. The reversal of 55991498 is 89419955.

It is an interprime number because it is at equal distance from previous prime (55991483) and next prime (55991513).

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, 36911 + ... + 38397.

It is an arithmetic number, because the mean of its divisors is an integer number (5350104).

Almost surely, 2^55991498 is an apocalyptic number.

55991498 is a deficient number, since it is larger than the sum of its proper divisors (29610166).

55991498 is a wasteful number, since it uses less digits than its factorization.

55991498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837.

The product of its digits is 583200, while the sum is 50.

The square root of 55991498 is about 7482.7466882155. The cubic root of 55991498 is about 382.5668739782.

The spelling of 55991498 in words is "fifty-five million, nine hundred ninety-one thousand, four hundred ninety-eight".