53305139 has 2 divisors, whose sum is σ = 53305140. Its totient is φ = 53305138.

The previous prime is 53305093. The next prime is 53305157. The reversal of 53305139 is 93150335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53305139 - 2²⁴ = 36527923 is a prime.

It is not a weakly prime, because it can be changed into another prime (53305159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26652569 + 26652570.

It is an arithmetic number, because the mean of its divisors is an integer number (26652570).

Almost surely, 2^53305139 is an apocalyptic number.

53305139 is a deficient number, since it is larger than the sum of its proper divisors (1).

53305139 is an equidigital number, since it uses as much as digits as its factorization.

53305139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6075, while the sum is 29.

The square root of 53305139 is about 7301.0368441749. The cubic root of 53305139 is about 376.3480701520.

The spelling of 53305139 in words is "fifty-three million, three hundred five thousand, one hundred thirty-nine".