53865556 has 12 divisors (see below), whose sum is σ = 94624992. Its totient is φ = 26829848.

The previous prime is 53865533. The next prime is 53865577. The reversal of 53865556 is 65556835.

It is a congruent number.

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, 24550 + ... + 26653.

It is an arithmetic number, because the mean of its divisors is an integer number (7885416).

Almost surely, 2^53865556 is an apocalyptic number.

It is an amenable number.

53865556 is a deficient number, since it is larger than the sum of its proper divisors (40759436).

53865556 is a wasteful number, since it uses less digits than its factorization.

53865556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51470 (or 51468 counting only the distinct ones).

The product of its digits is 540000, while the sum is 43.

The square root of 53865556 is about 7339.3157719232. The cubic root of 53865556 is about 377.6623712714.

The spelling of 53865556 in words is "fifty-three million, eight hundred sixty-five thousand, five hundred fifty-six".