25525070569 has 2 divisors, whose sum is σ = 25525070570. Its totient is φ = 25525070568.

The previous prime is 25525070503. The next prime is 25525070581. The reversal of 25525070569 is 96507052552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25358970025 + 166100544 = 159245^2 + 12888^2 .

It is a cyclic number.

It is not a de Polignac number, because 25525070569 - 2¹⁵ = 25525037801 is a prime.

It is a super-2 number, since 2×25525070569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25525074569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762535284 + 12762535285.

It is an arithmetic number, because the mean of its divisors is an integer number (12762535285).

Almost surely, 2^25525070569 is an apocalyptic number.

It is an amenable number.

25525070569 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525070569 is an equidigital number, since it uses as much as digits as its factorization.

25525070569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 25525070569 in words is "twenty-five billion, five hundred twenty-five million, seventy thousand, five hundred sixty-nine".