52270139 has 2 divisors, whose sum is σ = 52270140. Its totient is φ = 52270138.

The previous prime is 52270133. The next prime is 52270171. The reversal of 52270139 is 93107225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52270139 - 2¹² = 52266043 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (52270133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26135069 + 26135070.

It is an arithmetic number, because the mean of its divisors is an integer number (26135070).

Almost surely, 2^52270139 is an apocalyptic number.

52270139 is a deficient number, since it is larger than the sum of its proper divisors (1).

52270139 is an equidigital number, since it uses as much as digits as its factorization.

52270139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 52270139 is about 7229.8090569530. The cubic root of 52270139 is about 373.8963437751.

The spelling of 52270139 in words is "fifty-two million, two hundred seventy thousand, one hundred thirty-nine".