53992639 has 2 divisors, whose sum is σ = 53992640. Its totient is φ = 53992638.

The previous prime is 53992633. The next prime is 53992709. The reversal of 53992639 is 93629935.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53992639 - 2⁷ = 53992511 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53992633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26996319 + 26996320.

It is an arithmetic number, because the mean of its divisors is an integer number (26996320).

Almost surely, 2^53992639 is an apocalyptic number.

53992639 is a deficient number, since it is larger than the sum of its proper divisors (1).

53992639 is an equidigital number, since it uses as much as digits as its factorization.

53992639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 46.

The square root of 53992639 is about 7347.9683586689. The cubic root of 53992639 is about 377.9591395976.

The spelling of 53992639 in words is "fifty-three million, nine hundred ninety-two thousand, six hundred thirty-nine".