56448096521 has 4 divisors (see below), whose sum is σ = 56478171972. Its totient is φ = 56418021072.

The previous prime is 56448096511. The next prime is 56448096589. The reversal of 56448096521 is 12569084465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14010036496 + 42438060025 = 118364^2 + 206005^2 .

It is a cyclic number.

It is not a de Polignac number, because 56448096521 - 2³⁴ = 39268227337 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 56448096521.

It is not an unprimeable number, because it can be changed into a prime (56448096511) 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, 15034910 + ... + 15038663.

It is an arithmetic number, because the mean of its divisors is an integer number (14119542993).

Almost surely, 2^56448096521 is an apocalyptic number.

It is an amenable number.

56448096521 is a deficient number, since it is larger than the sum of its proper divisors (30075451).

56448096521 is a wasteful number, since it uses less digits than its factorization.

56448096521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30075450.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 56448096521 in words is "fifty-six billion, four hundred forty-eight million, ninety-six thousand, five hundred twenty-one".