53157612 has 12 divisors (see below), whose sum is σ = 124034456. Its totient is φ = 17719200.

The previous prime is 53157583. The next prime is 53157619. The reversal of 53157612 is 21675135.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53157612.

It is not an unprimeable number, because it can be changed into a prime (53157619) 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, 2214889 + ... + 2214912.

Almost surely, 2^53157612 is an apocalyptic number.

It is an amenable number.

53157612 is an abundant number, since it is smaller than the sum of its proper divisors (70876844).

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

53157612 is a wasteful number, since it uses less digits than its factorization.

53157612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429808 (or 4429806 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 53157612 is about 7290.9266900717. The cubic root of 53157612 is about 376.0005564350. Note that the first 3 decimals are identical.

The spelling of 53157612 in words is "fifty-three million, one hundred fifty-seven thousand, six hundred twelve".