55868499 has 6 divisors (see below), whose sum is σ = 80698956. Its totient is φ = 37245660.

The previous prime is 55868473. The next prime is 55868503. The reversal of 55868499 is 99486855.

It is a happy number.

55868499 is a `hidden beast` number, since 558 + 6 + 84 + 9 + 9 = 666.

It is not a de Polignac number, because 55868499 - 2⁵ = 55868467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55868299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3103797 + ... + 3103814.

It is an arithmetic number, because the mean of its divisors is an integer number (13449826).

Almost surely, 2^55868499 is an apocalyptic number.

55868499 is a deficient number, since it is larger than the sum of its proper divisors (24830457).

55868499 is a wasteful number, since it uses less digits than its factorization.

55868499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6207617 (or 6207614 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 55868499 is about 7474.5233292833. The cubic root of 55868499 is about 382.2865347427.

The spelling of 55868499 in words is "fifty-five million, eight hundred sixty-eight thousand, four hundred ninety-nine".