57578489 has 2 divisors, whose sum is σ = 57578490. Its totient is φ = 57578488.

The previous prime is 57578467. The next prime is 57578533. The reversal of 57578489 is 98487575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 17572864 = 6325^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 57578489 - 2⁸ = 57578233 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57578489.

It is not a weakly prime, because it can be changed into another prime (57578429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28789244 + 28789245.

It is an arithmetic number, because the mean of its divisors is an integer number (28789245).

Almost surely, 2^57578489 is an apocalyptic number.

It is an amenable number.

57578489 is a deficient number, since it is larger than the sum of its proper divisors (1).

57578489 is an equidigital number, since it uses as much as digits as its factorization.

57578489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 53.

The square root of 57578489 is about 7588.0490905107. The cubic root of 57578489 is about 386.1476722958.

The spelling of 57578489 in words is "fifty-seven million, five hundred seventy-eight thousand, four hundred eighty-nine".