57165461 has 2 divisors, whose sum is σ = 57165462. Its totient is φ = 57165460.

The previous prime is 57165443. The next prime is 57165463. The reversal of 57165461 is 16456175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48790225 + 8375236 = 6985^2 + 2894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57165461 is a prime.

Together with 57165463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57165463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28582730 + 28582731.

It is an arithmetic number, because the mean of its divisors is an integer number (28582731).

Almost surely, 2^57165461 is an apocalyptic number.

It is an amenable number.

57165461 is a deficient number, since it is larger than the sum of its proper divisors (1).

57165461 is an equidigital number, since it uses as much as digits as its factorization.

57165461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 57165461 is about 7560.7844169769. The cubic root of 57165461 is about 385.2221375060. Note that the first 3 decimals are identical.

The spelling of 57165461 in words is "fifty-seven million, one hundred sixty-five thousand, four hundred sixty-one".