53811632 has 20 divisors (see below), whose sum is σ = 119154576. Its totient is φ = 23062080.

The previous prime is 53811631. The next prime is 53811649. The reversal of 53811632 is 23611835.

It is a junction number, because it is equal to n+sod(n) for n = 53811595 and 53811604.

It is not an unprimeable number, because it can be changed into a prime (53811631) 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, 240119 + ... + 240342.

Almost surely, 2^53811632 is an apocalyptic number.

It is an amenable number.

53811632 is an abundant number, since it is smaller than the sum of its proper divisors (65342944).

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

53811632 is a wasteful number, since it uses less digits than its factorization.

53811632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480476 (or 480470 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 53811632 is about 7335.6412126003. The cubic root of 53811632 is about 377.5363051498.

The spelling of 53811632 in words is "fifty-three million, eight hundred eleven thousand, six hundred thirty-two".