53512272 has 80 divisors (see below), whose sum is σ = 167578560. Its totient is φ = 16214400.

The previous prime is 53512271. The next prime is 53512301. The reversal of 53512272 is 27221535.

53512272 is a `hidden beast` number, since 535 + 122 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53512271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (2094732).

Almost surely, 2^53512272 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 53512272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83789280).

53512272 is an abundant number, since it is smaller than the sum of its proper divisors (114066288).

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

53512272 is a wasteful number, since it uses less digits than its factorization.

53512272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289 (or 11277 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 53512272 is about 7315.2082677119. The cubic root of 53512272 is about 376.8349109607.

The spelling of 53512272 in words is "fifty-three million, five hundred twelve thousand, two hundred seventy-two".