53139367 has 2 divisors, whose sum is σ = 53139368. Its totient is φ = 53139366.

The previous prime is 53139347. The next prime is 53139379. The reversal of 53139367 is 76393135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53139367 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 (53139347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26569683 + 26569684.

It is an arithmetic number, because the mean of its divisors is an integer number (26569684).

Almost surely, 2^53139367 is an apocalyptic number.

53139367 is a deficient number, since it is larger than the sum of its proper divisors (1).

53139367 is an equidigital number, since it uses as much as digits as its factorization.

53139367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 37.

The square root of 53139367 is about 7289.6753700011. The cubic root of 53139367 is about 375.9575339659.

The spelling of 53139367 in words is "fifty-three million, one hundred thirty-nine thousand, three hundred sixty-seven".