56999838 has 24 divisors (see below), whose sum is σ = 132612552. Its totient is φ = 16285584.

The previous prime is 56999837. The next prime is 56999851. The reversal of 56999838 is 83899965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56999837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96645 + ... + 97232.

It is an arithmetic number, because the mean of its divisors is an integer number (5525523).

Almost surely, 2^56999838 is an apocalyptic number.

56999838 is an abundant number, since it is smaller than the sum of its proper divisors (75612714).

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

56999838 is a wasteful number, since it uses less digits than its factorization.

56999838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193896 (or 193889 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The square root of 56999838 is about 7549.8237065510. The cubic root of 56999838 is about 384.8497485325.

The spelling of 56999838 in words is "fifty-six million, nine hundred ninety-nine thousand, eight hundred thirty-eight".