53688372 has 12 divisors (see below), whose sum is σ = 125272896. Its totient is φ = 17896120.

The previous prime is 53688343. The next prime is 53688389. The reversal of 53688372 is 27388635.

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

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, 2237004 + ... + 2237027.

It is an arithmetic number, because the mean of its divisors is an integer number (10439408).

Almost surely, 2^53688372 is an apocalyptic number.

It is an amenable number.

53688372 is an abundant number, since it is smaller than the sum of its proper divisors (71584524).

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

53688372 is a wasteful number, since it uses less digits than its factorization.

53688372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474038 (or 4474036 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 53688372 is about 7327.2349491469. The cubic root of 53688372 is about 377.2478253832.

The spelling of 53688372 in words is "fifty-three million, six hundred eighty-eight thousand, three hundred seventy-two".