52920137 has 2 divisors, whose sum is σ = 52920138. Its totient is φ = 52920136.

The previous prime is 52920113. The next prime is 52920163. The reversal of 52920137 is 73102925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27709696 + 25210441 = 5264^2 + 5021^2 .

It is a cyclic number.

It is not a de Polignac number, because 52920137 - 2¹² = 52916041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52920107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26460068 + 26460069.

It is an arithmetic number, because the mean of its divisors is an integer number (26460069).

Almost surely, 2^52920137 is an apocalyptic number.

It is an amenable number.

52920137 is a deficient number, since it is larger than the sum of its proper divisors (1).

52920137 is an equidigital number, since it uses as much as digits as its factorization.

52920137 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 52920137 is about 7274.6228080912. The cubic root of 52920137 is about 375.4398087212.

The spelling of 52920137 in words is "fifty-two million, nine hundred twenty thousand, one hundred thirty-seven".