53656313 has 4 divisors (see below), whose sum is σ = 53701620. Its totient is φ = 53611008.

The previous prime is 53656297. The next prime is 53656321. The reversal of 53656313 is 31365635.

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 21086464 + 32569849 = 4592^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 53656313 - 2⁴ = 53656297 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 53656313.

It is not an unprimeable number, because it can be changed into a prime (53650313) 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, 20828 + ... + 23261.

It is an arithmetic number, because the mean of its divisors is an integer number (13425405).

Almost surely, 2^53656313 is an apocalyptic number.

It is an amenable number.

53656313 is a deficient number, since it is larger than the sum of its proper divisors (45307).

53656313 is a wasteful number, since it uses less digits than its factorization.

53656313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45306.

The product of its digits is 24300, while the sum is 32.

The square root of 53656313 is about 7325.0469623068. The cubic root of 53656313 is about 377.1727216214.

The spelling of 53656313 in words is "fifty-three million, six hundred fifty-six thousand, three hundred thirteen".