53765172 has 36 divisors (see below), whose sum is σ = 136492356. Its totient is φ = 17844480.

The previous prime is 53765147. The next prime is 53765183. The reversal of 53765172 is 27156735.

53765172 is a `hidden beast` number, since 537 + 6 + 51 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31069476 + 22695696 = 5574^2 + 4764^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5578 + ... + 11774.

Almost surely, 2^53765172 is an apocalyptic number.

It is an amenable number.

53765172 is an abundant number, since it is smaller than the sum of its proper divisors (82727184).

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

53765172 is a wasteful number, since it uses less digits than its factorization.

53765172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6448 (or 6443 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 53765172 is about 7332.4737981121. The cubic root of 53765172 is about 377.4276211688.

The spelling of 53765172 in words is "fifty-three million, seven hundred sixty-five thousand, one hundred seventy-two".