52269391 has 2 divisors, whose sum is σ = 52269392. Its totient is φ = 52269390.

The previous prime is 52269389. The next prime is 52269403. The reversal of 52269391 is 19396225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52269391 - 2¹ = 52269389 is a prime.

Together with 52269389, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52269391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52269331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26134695 + 26134696.

It is an arithmetic number, because the mean of its divisors is an integer number (26134696).

Almost surely, 2^52269391 is an apocalyptic number.

52269391 is the 4573-rd centered pentagonal number.

52269391 is a deficient number, since it is larger than the sum of its proper divisors (1).

52269391 is an equidigital number, since it uses as much as digits as its factorization.

52269391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 52269391 is about 7229.7573264944. The cubic root of 52269391 is about 373.8945602469.

The spelling of 52269391 in words is "fifty-two million, two hundred sixty-nine thousand, three hundred ninety-one".