53187392 has 28 divisors (see below), whose sum is σ = 109186980. Its totient is φ = 25675776.

The previous prime is 53187391. The next prime is 53187401. The reversal of 53187392 is 29378135.

It can be written as a sum of positive squares in 2 ways, for example, as 18800896 + 34386496 = 4336^2 + 5864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53187391) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12473 + ... + 16184.

It is an arithmetic number, because the mean of its divisors is an integer number (3899535).

Almost surely, 2^53187392 is an apocalyptic number.

It is an amenable number.

53187392 is an abundant number, since it is smaller than the sum of its proper divisors (55999588).

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

53187392 is a wasteful number, since it uses less digits than its factorization.

53187392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28698 (or 28688 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 53187392 is about 7292.9686685190. The cubic root of 53187392 is about 376.0707577715.

The spelling of 53187392 in words is "fifty-three million, one hundred eighty-seven thousand, three hundred ninety-two".