57619889 has 2 divisors, whose sum is σ = 57619890. Its totient is φ = 57619888.

The previous prime is 57619867. The next prime is 57619927. The reversal of 57619889 is 98891675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31528225 + 26091664 = 5615^2 + 5108^2 .

It is a cyclic number.

It is not a de Polignac number, because 57619889 - 2⁸ = 57619633 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57619889.

It is not a weakly prime, because it can be changed into another prime (57619819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28809944 + 28809945.

It is an arithmetic number, because the mean of its divisors is an integer number (28809945).

Almost surely, 2^57619889 is an apocalyptic number.

It is an amenable number.

57619889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57619889 is an equidigital number, since it uses as much as digits as its factorization.

57619889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 53.

The square root of 57619889 is about 7590.7765742380. The cubic root of 57619889 is about 386.2401992325.

The spelling of 57619889 in words is "fifty-seven million, six hundred nineteen thousand, eight hundred eighty-nine".