57473561 has 2 divisors, whose sum is σ = 57473562. Its totient is φ = 57473560.

The previous prime is 57473539. The next prime is 57473569. The reversal of 57473561 is 16537475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 17161 = 7580^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 57473561 - 2⁶ = 57473497 is a prime.

It is not a weakly prime, because it can be changed into another prime (57473569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28736780 + 28736781.

It is an arithmetic number, because the mean of its divisors is an integer number (28736781).

Almost surely, 2^57473561 is an apocalyptic number.

It is an amenable number.

57473561 is a deficient number, since it is larger than the sum of its proper divisors (1).

57473561 is an equidigital number, since it uses as much as digits as its factorization.

57473561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 38.

The square root of 57473561 is about 7581.1319075716. The cubic root of 57473561 is about 385.9129646179.

The spelling of 57473561 in words is "fifty-seven million, four hundred seventy-three thousand, five hundred sixty-one".