57002789 has 2 divisors, whose sum is σ = 57002790. Its totient is φ = 57002788.

The previous prime is 57002773. The next prime is 57002797. The reversal of 57002789 is 98720075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57002500 + 289 = 7550^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 57002789 - 2⁴ = 57002773 is a prime.

It is a Chen prime.

It is equal to p_3394595 and since 57002789 and 3394595 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57002689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28501394 + 28501395.

It is an arithmetic number, because the mean of its divisors is an integer number (28501395).

Almost surely, 2^57002789 is an apocalyptic number.

It is an amenable number.

57002789 is a deficient number, since it is larger than the sum of its proper divisors (1).

57002789 is an equidigital number, since it uses as much as digits as its factorization.

57002789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 57002789 is about 7550.0191390486. The cubic root of 57002789 is about 384.8563899081.

The spelling of 57002789 in words is "fifty-seven million, two thousand, seven hundred eighty-nine".