57661141 has 2 divisors, whose sum is σ = 57661142. Its totient is φ = 57661140.

The previous prime is 57661117. The next prime is 57661169. The reversal of 57661141 is 14116675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 16573041 = 6410^2 + 4071^2 .

It is a cyclic number.

It is not a de Polignac number, because 57661141 - 2¹¹ = 57659093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57661111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28830570 + 28830571.

It is an arithmetic number, because the mean of its divisors is an integer number (28830571).

Almost surely, 2^57661141 is an apocalyptic number.

It is an amenable number.

57661141 is a deficient number, since it is larger than the sum of its proper divisors (1).

57661141 is an equidigital number, since it uses as much as digits as its factorization.

57661141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 57661141 is about 7593.4933331109. The cubic root of 57661141 is about 386.3323513240.

The spelling of 57661141 in words is "fifty-seven million, six hundred sixty-one thousand, one hundred forty-one".