53187313 has 8 divisors (see below), whose sum is σ = 54331200. Its totient is φ = 52055568.

The previous prime is 53187301. The next prime is 53187319. The reversal of 53187313 is 31378135.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53187313 - 2⁹ = 53186801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53187319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6108 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (6791400).

Almost surely, 2^53187313 is an apocalyptic number.

It is an amenable number.

53187313 is a deficient number, since it is larger than the sum of its proper divisors (1143887).

53187313 is a wasteful number, since it uses less digits than its factorization.

53187313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071.

The product of its digits is 7560, while the sum is 31.

The square root of 53187313 is about 7292.9632523413. The cubic root of 53187313 is about 376.0705715770.

The spelling of 53187313 in words is "fifty-three million, one hundred eighty-seven thousand, three hundred thirteen".