56447064 has 32 divisors (see below), whose sum is σ = 156798000. Its totient is φ = 18815616.

The previous prime is 56447057. The next prime is 56447071. The reversal of 56447064 is 46074465.

56447064 is a `hidden beast` number, since 5 + 644 + 7 + 0 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (56447057) and next prime (56447071).

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

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, 130449 + ... + 130880.

Almost surely, 2^56447064 is an apocalyptic number.

56447064 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56447064 is an abundant number, since it is smaller than the sum of its proper divisors (100350936).

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

56447064 is a wasteful number, since it uses less digits than its factorization.

56447064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261344 (or 261334 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 56447064 is about 7513.1261136760. The cubic root of 56447064 is about 383.6016376623.

The spelling of 56447064 in words is "fifty-six million, four hundred forty-seven thousand, sixty-four".