56326400561 has 8 divisors (see below), whose sum is σ = 56647968000. Its totient is φ = 56005218720.

The previous prime is 56326400539. The next prime is 56326400579. The reversal of 56326400561 is 16500462365.

It is a happy number.

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 56326400561 - 2⁶ = 56326400497 is a prime.

It is a super-2 number, since 2×56326400561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56326400531) 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, 199160 + ... + 390278.

It is an arithmetic number, because the mean of its divisors is an integer number (7080996000).

Almost surely, 2^56326400561 is an apocalyptic number.

It is an amenable number.

56326400561 is a deficient number, since it is larger than the sum of its proper divisors (321567439).

56326400561 is a wasteful number, since it uses less digits than its factorization.

56326400561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192799.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 56326400561 in words is "fifty-six billion, three hundred twenty-six million, four hundred thousand, five hundred sixty-one".