56667444 has 24 divisors (see below), whose sum is σ = 132900768. Its totient is φ = 18792480.

The previous prime is 56667433. The next prime is 56667451. The reversal of 56667444 is 44476665.

It is a happy number.

It is a super-2 number, since 2×56667444² = 6422398418986272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56667396 and 56667405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9622 + ... + 14349.

It is an arithmetic number, because the mean of its divisors is an integer number (5537532).

Almost surely, 2^56667444 is an apocalyptic number.

It is an amenable number.

56667444 is an abundant number, since it is smaller than the sum of its proper divisors (76233324).

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

56667444 is a wasteful number, since it uses less digits than its factorization.

56667444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24175 (or 24173 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The square root of 56667444 is about 7527.7781582616. The cubic root of 56667444 is about 384.1002071380.

The spelling of 56667444 in words is "fifty-six million, six hundred sixty-seven thousand, four hundred forty-four".