56677899 has 4 divisors (see below), whose sum is σ = 75570536. Its totient is φ = 37785264.

The previous prime is 56677897. The next prime is 56677909. The reversal of 56677899 is 99877665.

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

It is not a de Polignac number, because 56677899 - 2¹ = 56677897 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (56677891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9446314 + ... + 9446319.

It is an arithmetic number, because the mean of its divisors is an integer number (18892634).

Almost surely, 2^56677899 is an apocalyptic number.

56677899 is a deficient number, since it is larger than the sum of its proper divisors (18892637).

56677899 is a wasteful number, since it uses less digits than its factorization.

56677899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18892636.

The product of its digits is 5715360, while the sum is 57.

The square root of 56677899 is about 7528.4725542437. The cubic root of 56677899 is about 384.1238275241.

The spelling of 56677899 in words is "fifty-six million, six hundred seventy-seven thousand, eight hundred ninety-nine".