52163391 has 24 divisors (see below), whose sum is σ = 82031664. Its totient is φ = 29393280.

The previous prime is 52163389. The next prime is 52163393. The reversal of 52163391 is 19336125.

It is an interprime number because it is at equal distance from previous prime (52163389) and next prime (52163393).

It is not a de Polignac number, because 52163391 - 2¹ = 52163389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52163393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8301 + ... + 13161.

It is an arithmetic number, because the mean of its divisors is an integer number (3417986).

Almost surely, 2^52163391 is an apocalyptic number.

52163391 is a deficient number, since it is larger than the sum of its proper divisors (29868273).

52163391 is a wasteful number, since it uses less digits than its factorization.

52163391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951 (or 4944 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 52163391 is about 7222.4227929414. The cubic root of 52163391 is about 373.6416420217.

The spelling of 52163391 in words is "fifty-two million, one hundred sixty-three thousand, three hundred ninety-one".