56667828 has 48 divisors (see below), whose sum is σ = 151625600. Its totient is φ = 16136064.

The previous prime is 56667811. The next prime is 56667833. The reversal of 56667828 is 82876665.

56667828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56667828² = 6422485460475168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28350 + ... + 30282.

Almost surely, 2^56667828 is an apocalyptic number.

It is an amenable number.

56667828 is an abundant number, since it is smaller than the sum of its proper divisors (94957772).

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

56667828 is a wasteful number, since it uses less digits than its factorization.

56667828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296 (or 2294 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 56667828 is about 7527.8036637521. The cubic root of 56667828 is about 384.1010747387.

The spelling of 56667828 in words is "fifty-six million, six hundred sixty-seven thousand, eight hundred twenty-eight".