56532460561 has 4 divisors (see below), whose sum is σ = 56545664112. Its totient is φ = 56519257012.

The previous prime is 56532460553. The next prime is 56532460577. The reversal of 56532460561 is 16506423565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56532460561 - 2³ = 56532460553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56532490561) 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, 6595351 + ... + 6603916.

It is an arithmetic number, because the mean of its divisors is an integer number (14136416028).

Almost surely, 2^56532460561 is an apocalyptic number.

It is an amenable number.

56532460561 is a deficient number, since it is larger than the sum of its proper divisors (13203551).

56532460561 is a wasteful number, since it uses less digits than its factorization.

56532460561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13203550.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 56532460561 in words is "fifty-six billion, five hundred thirty-two million, four hundred sixty thousand, five hundred sixty-one".