53656636 has 12 divisors (see below), whose sum is σ = 102435480. Its totient is φ = 24389360.

The previous prime is 53656633. The next prime is 53656649. The reversal of 53656636 is 63665635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53656633) 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, 609691 + ... + 609778.

It is an arithmetic number, because the mean of its divisors is an integer number (8536290).

Almost surely, 2^53656636 is an apocalyptic number.

It is an amenable number.

53656636 is a deficient number, since it is larger than the sum of its proper divisors (48778844).

53656636 is a wasteful number, since it uses less digits than its factorization.

53656636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219484 (or 1219482 counting only the distinct ones).

The product of its digits is 291600, while the sum is 40.

The square root of 53656636 is about 7325.0690099138. The cubic root of 53656636 is about 377.1734784541.

The spelling of 53656636 in words is "fifty-three million, six hundred fifty-six thousand, six hundred thirty-six".