53538564 has 12 divisors (see below), whose sum is σ = 124923344. Its totient is φ = 17846184.

The previous prime is 53538557. The next prime is 53538571. The reversal of 53538564 is 46583535.

It is an interprime number because it is at equal distance from previous prime (53538557) and next prime (53538571).

It is a tau number, because it is divible by the number of its divisors (12).

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, 2230762 + ... + 2230785.

Almost surely, 2^53538564 is an apocalyptic number.

It is an amenable number.

53538564 is an abundant number, since it is smaller than the sum of its proper divisors (71384780).

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

53538564 is a wasteful number, since it uses less digits than its factorization.

53538564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461554 (or 4461552 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 53538564 is about 7317.0051250495. The cubic root of 53538564 is about 376.8966171881.

The spelling of 53538564 in words is "fifty-three million, five hundred thirty-eight thousand, five hundred sixty-four".