53507136 has 56 divisors (see below), whose sum is σ = 144885664. Its totient is φ = 17418240.

The previous prime is 53507123. The next prime is 53507141. The reversal of 53507136 is 63170535.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5016 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (2587244).

Almost surely, 2^53507136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53507136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72442832).

53507136 is an abundant number, since it is smaller than the sum of its proper divisors (91378528).

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

53507136 is a wasteful number, since it uses less digits than its factorization.

53507136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 53507136 is about 7314.8572098162. The cubic root of 53507136 is about 376.8228546232.

The spelling of 53507136 in words is "fifty-three million, five hundred seven thousand, one hundred thirty-six".