56751648 has 24 divisors (see below), whose sum is σ = 148973328. Its totient is φ = 18917184.

The previous prime is 56751641. The next prime is 56751659. The reversal of 56751648 is 84615765.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (56751641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295486 + ... + 295677.

It is an arithmetic number, because the mean of its divisors is an integer number (6207222).

Almost surely, 2^56751648 is an apocalyptic number.

It is an amenable number.

56751648 is an abundant number, since it is smaller than the sum of its proper divisors (92221680).

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

56751648 is a wasteful number, since it uses less digits than its factorization.

56751648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591176 (or 591168 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 56751648 is about 7533.3689674673. The cubic root of 56751648 is about 384.2903619844.

The spelling of 56751648 in words is "fifty-six million, seven hundred fifty-one thousand, six hundred forty-eight".