2575815157 has 2 divisors, whose sum is σ = 2575815158. Its totient is φ = 2575815156.

The previous prime is 2575815107. The next prime is 2575815167. The reversal of 2575815157 is 7515185752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2517430276 + 58384881 = 50174^2 + 7641^2 .

It is a cyclic number.

It is not a de Polignac number, because 2575815157 - 2⁷ = 2575815029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2575815107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287907578 + 1287907579.

It is an arithmetic number, because the mean of its divisors is an integer number (1287907579).

Almost surely, 2^2575815157 is an apocalyptic number.

It is an amenable number.

2575815157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2575815157 is an equidigital number, since it uses as much as digits as its factorization.

2575815157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 490000, while the sum is 46.

The square root of 2575815157 is about 50752.4891704831. The cubic root of 2575815157 is about 1370.7920113617.

The spelling of 2575815157 in words is "two billion, five hundred seventy-five million, eight hundred fifteen thousand, one hundred fifty-seven".