56521000465535 has 4 divisors (see below), whose sum is σ = 67825200558648. Its totient is φ = 45216800372424.

The previous prime is 56521000465519. The next prime is 56521000465541. The reversal of 56521000465535 is 53556400012565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56521000465535 - 2⁴ = 56521000465519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56521000465535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652100046549 + ... + 5652100046558.

It is an arithmetic number, because the mean of its divisors is an integer number (16956300139662).

Almost surely, 2^{56521000465535} is an apocalyptic number.

56521000465535 is a deficient number, since it is larger than the sum of its proper divisors (11304200093113).

56521000465535 is a wasteful number, since it uses less digits than its factorization.

56521000465535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304200093112.

The product of its (nonzero) digits is 2700000, while the sum is 47.

The spelling of 56521000465535 in words is "fifty-six trillion, five hundred twenty-one billion, four hundred sixty-five thousand, five hundred thirty-five".