56521635 has 8 divisors (see below), whose sum is σ = 90434640. Its totient is φ = 30144864.

The previous prime is 56521631. The next prime is 56521687. The reversal of 56521635 is 53612565.

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

It is not a de Polignac number, because 56521635 - 2² = 56521631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56521596 and 56521605.

It is not an unprimeable number, because it can be changed into a prime (56521631) 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, 1884040 + ... + 1884069.

It is an arithmetic number, because the mean of its divisors is an integer number (11304330).

Almost surely, 2^56521635 is an apocalyptic number.

56521635 is a deficient number, since it is larger than the sum of its proper divisors (33913005).

56521635 is a wasteful number, since it uses less digits than its factorization.

56521635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768117.

The product of its digits is 27000, while the sum is 33.

The square root of 56521635 is about 7518.0871902366. The cubic root of 56521635 is about 383.7704859496.

The spelling of 56521635 in words is "fifty-six million, five hundred twenty-one thousand, six hundred thirty-five".