25425529 has 2 divisors, whose sum is σ = 25425530. Its totient is φ = 25425528.

The previous prime is 25425497. The next prime is 25425539. The reversal of 25425529 is 92552452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21902400 + 3523129 = 4680^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 25425529 - 2⁵ = 25425497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25425494 and 25425503.

It is not a weakly prime, because it can be changed into another prime (25425539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712764 + 12712765.

It is an arithmetic number, because the mean of its divisors is an integer number (12712765).

Almost surely, 2^25425529 is an apocalyptic number.

It is an amenable number.

25425529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25425529 is an equidigital number, since it uses as much as digits as its factorization.

25425529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 34.

The square root of 25425529 is about 5042.3733499216. The cubic root of 25425529 is about 294.0514548902.

The spelling of 25425529 in words is "twenty-five million, four hundred twenty-five thousand, five hundred twenty-nine".