53875639 has 2 divisors, whose sum is σ = 53875640. Its totient is φ = 53875638.

The previous prime is 53875631. The next prime is 53875651. The reversal of 53875639 is 93657835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53875639 - 2³ = 53875631 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 (53875631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26937819 + 26937820.

It is an arithmetic number, because the mean of its divisors is an integer number (26937820).

Almost surely, 2^53875639 is an apocalyptic number.

53875639 is a deficient number, since it is larger than the sum of its proper divisors (1).

53875639 is an equidigital number, since it uses as much as digits as its factorization.

53875639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 53875639 is about 7340.0026566753. The cubic root of 53875639 is about 377.6859344560.

It can be divided in two parts, 5387 and 5639, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 53875639 in words is "fifty-three million, eight hundred seventy-five thousand, six hundred thirty-nine".