56139163 has 2 divisors, whose sum is σ = 56139164. Its totient is φ = 56139162.

The previous prime is 56139131. The next prime is 56139169. The reversal of 56139163 is 36193165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56139163 - 2⁵ = 56139131 is a prime.

It is not a weakly prime, because it can be changed into another prime (56139169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28069581 + 28069582.

It is an arithmetic number, because the mean of its divisors is an integer number (28069582).

Almost surely, 2^56139163 is an apocalyptic number.

56139163 is a deficient number, since it is larger than the sum of its proper divisors (1).

56139163 is an equidigital number, since it uses as much as digits as its factorization.

56139163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 56139163 is about 7492.6072231233. The cubic root of 56139163 is about 382.9028901633.

The spelling of 56139163 in words is "fifty-six million, one hundred thirty-nine thousand, one hundred sixty-three".