53075512 has 64 divisors (see below), whose sum is σ = 121363200. Its totient is φ = 21254400.

The previous prime is 53075509. The next prime is 53075527. The reversal of 53075512 is 21557035.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88012 + ... + 88612.

It is an arithmetic number, because the mean of its divisors is an integer number (1896300).

Almost surely, 2^53075512 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 53075512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60681600).

53075512 is an abundant number, since it is smaller than the sum of its proper divisors (68287688).

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

53075512 is a wasteful number, since it uses less digits than its factorization.

53075512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 53075512 is about 7285.2942287872. The cubic root of 53075512 is about 375.8068836286.

The spelling of 53075512 in words is "fifty-three million, seventy-five thousand, five hundred twelve".