25028080529 has 2 divisors, whose sum is σ = 25028080530. Its totient is φ = 25028080528.

The previous prime is 25028080507. The next prime is 25028080579. The reversal of 25028080529 is 92508082052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17384949904 + 7643130625 = 131852^2 + 87425^2 .

It is a cyclic number.

It is not a de Polignac number, because 25028080529 - 2¹² = 25028076433 is a prime.

It is a super-2 number, since 2×25028080529² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25028080579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12514040264 + 12514040265.

It is an arithmetic number, because the mean of its divisors is an integer number (12514040265).

Almost surely, 2^25028080529 is an apocalyptic number.

It is an amenable number.

25028080529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25028080529 is an equidigital number, since it uses as much as digits as its factorization.

25028080529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 25028080529 in words is "twenty-five billion, twenty-eight million, eighty thousand, five hundred twenty-nine".