52653391 has 6 divisors (see below), whose sum is σ = 61249920. Its totient is φ = 45131436.

The previous prime is 52653353. The next prime is 52653397. The reversal of 52653391 is 19335625.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-52653391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52653397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 537231 + ... + 537328.

It is an arithmetic number, because the mean of its divisors is an integer number (10208320).

Almost surely, 2^52653391 is an apocalyptic number.

52653391 is a deficient number, since it is larger than the sum of its proper divisors (8596529).

52653391 is a wasteful number, since it uses less digits than its factorization.

52653391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074573 (or 1074566 counting only the distinct ones).

The product of its digits is 24300, while the sum is 34.

The square root of 52653391 is about 7256.2656373647. The cubic root of 52653391 is about 374.8079395768.

The spelling of 52653391 in words is "fifty-two million, six hundred fifty-three thousand, three hundred ninety-one".