56610864403 has 2 divisors, whose sum is σ = 56610864404. Its totient is φ = 56610864402.

The previous prime is 56610864383. The next prime is 56610864407. The reversal of 56610864403 is 30446801665.

It is a happy number.

56610864403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56610864403 - 2⁵ = 56610864371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56610864403.

It is not a weakly prime, because it can be changed into another prime (56610864407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28305432201 + 28305432202.

It is an arithmetic number, because the mean of its divisors is an integer number (28305432202).

Almost surely, 2^56610864403 is an apocalyptic number.

56610864403 is a deficient number, since it is larger than the sum of its proper divisors (1).

56610864403 is an equidigital number, since it uses as much as digits as its factorization.

56610864403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 56610864403 in words is "fifty-six billion, six hundred ten million, eight hundred sixty-four thousand, four hundred three".