56540052661 has 8 divisors (see below), whose sum is σ = 57479774400. Its totient is φ = 55603149888.

The previous prime is 56540052577. The next prime is 56540052671. The reversal of 56540052661 is 16625004565.

56540052661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56540052661 - 2²⁵ = 56506498229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56540052671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664276 + ... + 744541.

It is an arithmetic number, because the mean of its divisors is an integer number (7184971800).

Almost surely, 2^56540052661 is an apocalyptic number.

It is an amenable number.

56540052661 is a deficient number, since it is larger than the sum of its proper divisors (939721739).

56540052661 is a wasteful number, since it uses less digits than its factorization.

56540052661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409483.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 56540052661 in words is "fifty-six billion, five hundred forty million, fifty-two thousand, six hundred sixty-one".