56669004 has 48 divisors (see below), whose sum is σ = 167910400. Its totient is φ = 16190928.

The previous prime is 56668999. The next prime is 56669009. The reversal of 56669004 is 40096665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56668999) and next prime (56669009).

It is a super-2 number, since 2×56669004² = 6422752028704032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56669004.

It is not an unprimeable number, because it can be changed into a prime (56669009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36724 + ... + 38235.

Almost surely, 2^56669004 is an apocalyptic number.

56669004 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56669004 is an abundant number, since it is smaller than the sum of its proper divisors (111241396).

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

56669004 is a wasteful number, since it uses less digits than its factorization.

56669004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74979 (or 74971 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 56669004 is about 7527.8817737794. The cubic root of 56669004 is about 384.1037317416.

The spelling of 56669004 in words is "fifty-six million, six hundred sixty-nine thousand, four".