25525693 has 2 divisors, whose sum is σ = 25525694. Its totient is φ = 25525692.

The previous prime is 25525681. The next prime is 25525723. The reversal of 25525693 is 39652552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12830724 + 12694969 = 3582^2 + 3563^2 .

It is a cyclic number.

It is not a de Polignac number, because 25525693 - 2²¹ = 23428541 is a prime.

It is a super-2 number, since 2×25525693² = 1303122006260498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25525613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762846 + 12762847.

It is an arithmetic number, because the mean of its divisors is an integer number (12762847).

Almost surely, 2^25525693 is an apocalyptic number.

It is an amenable number.

25525693 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525693 is an equidigital number, since it uses as much as digits as its factorization.

25525693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 37.

The square root of 25525693 is about 5052.2958147757. The cubic root of 25525693 is about 294.4370879957.

The spelling of 25525693 in words is "twenty-five million, five hundred twenty-five thousand, six hundred ninety-three".