25525529 has 2 divisors, whose sum is σ = 25525530. Its totient is φ = 25525528.

The previous prime is 25525477. The next prime is 25525541. The reversal of 25525529 is 92552552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16999129 + 8526400 = 4123^2 + 2920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25525529 is a prime.

It is equal to p_1596653 and since 25525529 and 1596653 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25525589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762764 + 12762765.

It is an arithmetic number, because the mean of its divisors is an integer number (12762765).

Almost surely, 2^25525529 is an apocalyptic number.

It is an amenable number.

25525529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525529 is an equidigital number, since it uses as much as digits as its factorization.

25525529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45000, while the sum is 35.

The square root of 25525529 is about 5052.2795845044. The cubic root of 25525529 is about 294.4364574182.

The spelling of 25525529 in words is "twenty-five million, five hundred twenty-five thousand, five hundred twenty-nine".