53613564 has 24 divisors (see below), whose sum is σ = 125408640. Its totient is φ = 17826864.

The previous prime is 53613523. The next prime is 53613569. The reversal of 53613564 is 46531635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53613569) 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, 304 + ... + 10359.

It is an arithmetic number, because the mean of its divisors is an integer number (5225360).

Almost surely, 2^53613564 is an apocalyptic number.

It is an amenable number.

53613564 is an abundant number, since it is smaller than the sum of its proper divisors (71795076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53613564 is a wasteful number, since it uses less digits than its factorization.

53613564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089 (or 11087 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 53613564 is about 7322.1283790985. The cubic root of 53613564 is about 377.0725281263.

The spelling of 53613564 in words is "fifty-three million, six hundred thirteen thousand, five hundred sixty-four".