2689525897 has 2 divisors, whose sum is σ = 2689525898. Its totient is φ = 2689525896.

The previous prime is 2689525843. The next prime is 2689525901. The reversal of 2689525897 is 7985259862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2317074496 + 372451401 = 48136^2 + 19299^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689525897 - 2¹⁵ = 2689493129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2689525837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344762948 + 1344762949.

It is an arithmetic number, because the mean of its divisors is an integer number (1344762949).

Almost surely, 2^2689525897 is an apocalyptic number.

It is an amenable number.

2689525897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689525897 is an equidigital number, since it uses as much as digits as its factorization.

2689525897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 61.

The square root of 2689525897 is about 51860.6391881165. The cubic root of 2689525897 is about 1390.6737063323.

The spelling of 2689525897 in words is "two billion, six hundred eighty-nine million, five hundred twenty-five thousand, eight hundred ninety-seven".