53938566 has 24 divisors (see below), whose sum is σ = 127491624. Its totient is φ = 16344960.

The previous prime is 53938561. The next prime is 53938601. The reversal of 53938566 is 66583935.

53938566 is a `hidden beast` number, since 53 + 9 + 38 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53938561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136011 + ... + 136406.

It is an arithmetic number, because the mean of its divisors is an integer number (5312151).

Almost surely, 2^53938566 is an apocalyptic number.

53938566 is an abundant number, since it is smaller than the sum of its proper divisors (73553058).

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

53938566 is a wasteful number, since it uses less digits than its factorization.

53938566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272436 (or 272433 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 53938566 is about 7344.2879845496. The cubic root of 53938566 is about 377.8329235594.

The spelling of 53938566 in words is "fifty-three million, nine hundred thirty-eight thousand, five hundred sixty-six".