56455555 has 32 divisors (see below), whose sum is σ = 81345600. Its totient is φ = 37158912.

The previous prime is 56455541. The next prime is 56455559. The reversal of 56455555 is 55555465.

It is a cyclic number.

It is not a de Polignac number, because 56455555 - 2⁵ = 56455523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56455559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19651 + ... + 22339.

It is an arithmetic number, because the mean of its divisors is an integer number (2542050).

Almost surely, 2^56455555 is an apocalyptic number.

56455555 is a deficient number, since it is larger than the sum of its proper divisors (24890045).

56455555 is a wasteful number, since it uses less digits than its factorization.

56455555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743.

The product of its digits is 375000, while the sum is 40.

The square root of 56455555 is about 7513.6911701240. The cubic root of 56455555 is about 383.6208710110.

The spelling of 56455555 in words is "fifty-six million, four hundred fifty-five thousand, five hundred fifty-five".