55661456 has 40 divisors (see below), whose sum is σ = 110543520. Its totient is φ = 27143424.

The previous prime is 55661447. The next prime is 55661467. The reversal of 55661456 is 65416655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146675 + ... + 147053.

It is an arithmetic number, because the mean of its divisors is an integer number (2763588).

Almost surely, 2^55661456 is an apocalyptic number.

It is an amenable number.

55661456 is a deficient number, since it is larger than the sum of its proper divisors (54882064).

55661456 is a wasteful number, since it uses less digits than its factorization.

55661456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 585 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The square root of 55661456 is about 7460.6605605670. The cubic root of 55661456 is about 381.8137117872.

The spelling of 55661456 in words is "fifty-five million, six hundred sixty-one thousand, four hundred fifty-six".