53631636 has 12 divisors (see below), whose sum is σ = 125140512. Its totient is φ = 17877208.

The previous prime is 53631631. The next prime is 53631647. The reversal of 53631636 is 63613635.

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

It is a junction number, because it is equal to n+sod(n) for n = 53631597 and 53631606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53631631) 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, 2234640 + ... + 2234663.

It is an arithmetic number, because the mean of its divisors is an integer number (10428376).

Almost surely, 2^53631636 is an apocalyptic number.

It is an amenable number.

53631636 is an abundant number, since it is smaller than the sum of its proper divisors (71508876).

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

53631636 is a wasteful number, since it uses less digits than its factorization.

53631636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469310 (or 4469308 counting only the distinct ones).

The product of its digits is 29160, while the sum is 33.

The square root of 53631636 is about 7323.3623425309. The cubic root of 53631636 is about 377.1148910950.

The spelling of 53631636 in words is "fifty-three million, six hundred thirty-one thousand, six hundred thirty-six".