25252529 has 2 divisors, whose sum is σ = 25252530. Its totient is φ = 25252528.

The previous prime is 25252457. The next prime is 25252541. The reversal of 25252529 is 92525252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 4092529 = 4600^2 + 2023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25252529 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25252495 and 25252504.

It is not a weakly prime, because it can be changed into another prime (25251529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626264 + 12626265.

It is an arithmetic number, because the mean of its divisors is an integer number (12626265).

Almost surely, 2^25252529 is an apocalyptic number.

It is an amenable number.

25252529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25252529 is an equidigital number, since it uses as much as digits as its factorization.

25252529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 25252529 is about 5025.1894491651. The cubic root of 25252529 is about 293.3830096940.

The spelling of 25252529 in words is "twenty-five million, two hundred fifty-two thousand, five hundred twenty-nine".