53161481 has 2 divisors, whose sum is σ = 53161482. Its totient is φ = 53161480.

The previous prime is 53161429. The next prime is 53161483. The reversal of 53161481 is 18416135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26988025 + 26173456 = 5195^2 + 5116^2 .

It is a cyclic number.

It is not a de Polignac number, because 53161481 - 2¹⁸ = 52899337 is a prime.

It is a super-2 number, since 2×53161481² = 5652286124226722, which contains 22 as substring.

Together with 53161483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53161483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26580740 + 26580741.

It is an arithmetic number, because the mean of its divisors is an integer number (26580741).

Almost surely, 2^53161481 is an apocalyptic number.

It is an amenable number.

53161481 is a deficient number, since it is larger than the sum of its proper divisors (1).

53161481 is an equidigital number, since it uses as much as digits as its factorization.

53161481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 53161481 is about 7291.1920150274. The cubic root of 53161481 is about 376.0096784328.

The spelling of 53161481 in words is "fifty-three million, one hundred sixty-one thousand, four hundred eighty-one".