56447746 has 32 divisors (see below), whose sum is σ = 93038400. Its totient is φ = 25583040.

The previous prime is 56447731. The next prime is 56447749. The reversal of 56447746 is 64774465.

56447746 = 466² + 467² + ... + 646².

It is not an unprimeable number, because it can be changed into a prime (56447749) 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, 199321 + ... + 199603.

It is an arithmetic number, because the mean of its divisors is an integer number (2907450).

Almost surely, 2^56447746 is an apocalyptic number.

56447746 is a deficient number, since it is larger than the sum of its proper divisors (36590654).

56447746 is a wasteful number, since it uses less digits than its factorization.

56447746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its digits is 564480, while the sum is 43.

The square root of 56447746 is about 7513.1715007712. The cubic root of 56447746 is about 383.6031825626.

The spelling of 56447746 in words is "fifty-six million, four hundred forty-seven thousand, seven hundred forty-six".