56587838 has 4 divisors (see below), whose sum is σ = 84881760. Its totient is φ = 28293918.

The previous prime is 56587819. The next prime is 56587841. The reversal of 56587838 is 83878565.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14146958 + ... + 14146961.

It is an arithmetic number, because the mean of its divisors is an integer number (21220440).

Almost surely, 2^56587838 is an apocalyptic number.

56587838 is a deficient number, since it is larger than the sum of its proper divisors (28293922).

56587838 is a wasteful number, since it uses less digits than its factorization.

56587838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28293921.

The product of its digits is 1612800, while the sum is 50.

The square root of 56587838 is about 7522.4888168744. The cubic root of 56587838 is about 383.9202624874.

The spelling of 56587838 in words is "fifty-six million, five hundred eighty-seven thousand, eight hundred thirty-eight".