56581548 has 48 divisors (see below), whose sum is σ = 134529024. Its totient is φ = 18506880.

The previous prime is 56581537. The next prime is 56581571. The reversal of 56581548 is 84518565.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208653 + ... + 208923.

It is an arithmetic number, because the mean of its divisors is an integer number (2802688).

Almost surely, 2^56581548 is an apocalyptic number.

It is an amenable number.

56581548 is an abundant number, since it is smaller than the sum of its proper divisors (77947476).

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

56581548 is a wasteful number, since it uses less digits than its factorization.

56581548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 540 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 56581548 is about 7522.0707255383. The cubic root of 56581548 is about 383.9060371225.

The spelling of 56581548 in words is "fifty-six million, five hundred eighty-one thousand, five hundred forty-eight".