53161517 has 2 divisors, whose sum is σ = 53161518. Its totient is φ = 53161516.

The previous prime is 53161483. The next prime is 53161541. The reversal of 53161517 is 71516135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32194276 + 20967241 = 5674^2 + 4579^2 .

It is a cyclic number.

It is not a de Polignac number, because 53161517 - 2¹⁰ = 53160493 is a prime.

It is a super-2 number, since 2×53161517² = 5652293779482578, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53161517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53161117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26580758 + 26580759.

It is an arithmetic number, because the mean of its divisors is an integer number (26580759).

Almost surely, 2^53161517 is an apocalyptic number.

It is an amenable number.

53161517 is a deficient number, since it is larger than the sum of its proper divisors (1).

53161517 is an equidigital number, since it uses as much as digits as its factorization.

53161517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 29.

The square root of 53161517 is about 7291.1944837592. The cubic root of 53161517 is about 376.0097633084.

The spelling of 53161517 in words is "fifty-three million, one hundred sixty-one thousand, five hundred seventeen".