57949081 has 2 divisors, whose sum is σ = 57949082. Its totient is φ = 57949080.

The previous prime is 57949063. The next prime is 57949091. The reversal of 57949081 is 18094975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 16475481 = 6440^2 + 4059^2 .

It is a cyclic number.

It is not a de Polignac number, because 57949081 - 2²³ = 49560473 is a prime.

It is a super-2 number, since 2×57949081² = 6716191977489122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57949051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28974540 + 28974541.

It is an arithmetic number, because the mean of its divisors is an integer number (28974541).

Almost surely, 2^57949081 is an apocalyptic number.

It is an amenable number.

57949081 is a deficient number, since it is larger than the sum of its proper divisors (1).

57949081 is an equidigital number, since it uses as much as digits as its factorization.

57949081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 57949081 is about 7612.4293756987. The cubic root of 57949081 is about 386.9743543645.

The spelling of 57949081 in words is "fifty-seven million, nine hundred forty-nine thousand, eighty-one".