52161497 has 2 divisors, whose sum is σ = 52161498. Its totient is φ = 52161496.

The previous prime is 52161481. The next prime is 52161503. The reversal of 52161497 is 79416125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48177481 + 3984016 = 6941^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 52161497 - 2⁴ = 52161481 is a prime.

It is not a weakly prime, because it can be changed into another prime (52161427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26080748 + 26080749.

It is an arithmetic number, because the mean of its divisors is an integer number (26080749).

Almost surely, 2^52161497 is an apocalyptic number.

It is an amenable number.

52161497 is a deficient number, since it is larger than the sum of its proper divisors (1).

52161497 is an equidigital number, since it uses as much as digits as its factorization.

52161497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 52161497 is about 7222.2916723157. The cubic root of 52161497 is about 373.6371197835.

The spelling of 52161497 in words is "fifty-two million, one hundred sixty-one thousand, four hundred ninety-seven".