2597689057 has 2 divisors, whose sum is σ = 2597689058. Its totient is φ = 2597689056.

The previous prime is 2597689049. The next prime is 2597689099. The reversal of 2597689057 is 7509867952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2513618496 + 84070561 = 50136^2 + 9169^2 .

It is a cyclic number.

It is not a de Polignac number, because 2597689057 - 2³ = 2597689049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2597688992 and 2597689010.

It is not a weakly prime, because it can be changed into another prime (2597689027) 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, 1298844528 + 1298844529.

It is an arithmetic number, because the mean of its divisors is an integer number (1298844529).

Almost surely, 2^2597689057 is an apocalyptic number.

It is an amenable number.

2597689057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2597689057 is an equidigital number, since it uses as much as digits as its factorization.

2597689057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9525600, while the sum is 58.

The square root of 2597689057 is about 50967.5294378686. The cubic root of 2597689057 is about 1374.6613481367.

The spelling of 2597689057 in words is "two billion, five hundred ninety-seven million, six hundred eighty-nine thousand, fifty-seven".