25532413 has 2 divisors, whose sum is σ = 25532414. Its totient is φ = 25532412.

The previous prime is 25532401. The next prime is 25532431. The reversal of 25532413 is 31423552.

Together with next prime (25532431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19166884 + 6365529 = 4378^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 25532413 - 2⁹ = 25531901 is a prime.

It is a super-2 number, since 2×25532413² = 1303808227205138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25532443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766206 + 12766207.

It is an arithmetic number, because the mean of its divisors is an integer number (12766207).

Almost surely, 2^25532413 is an apocalyptic number.

It is an amenable number.

25532413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25532413 is an equidigital number, since it uses as much as digits as its factorization.

25532413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 25532413 is about 5052.9608152053. The cubic root of 25532413 is about 294.4629239724.

Adding to 25532413 its reverse (31423552), we get a palindrome (56955965).

The spelling of 25532413 in words is "twenty-five million, five hundred thirty-two thousand, four hundred thirteen".