25089613 has 2 divisors, whose sum is σ = 25089614. Its totient is φ = 25089612.

The previous prime is 25089607. The next prime is 25089641. The reversal of 25089613 is 31698052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 7767369 = 4162^2 + 2787^2 .

It is a cyclic number.

It is not a de Polignac number, because 25089613 - 2¹³ = 25081421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25089413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544806 + 12544807.

It is an arithmetic number, because the mean of its divisors is an integer number (12544807).

Almost surely, 2^25089613 is an apocalyptic number.

It is an amenable number.

25089613 is a deficient number, since it is larger than the sum of its proper divisors (1).

25089613 is an equidigital number, since it uses as much as digits as its factorization.

25089613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25089613 is about 5008.9532838708. The cubic root of 25089613 is about 292.7507305408.

It can be divided in two parts, 2508 and 9613, that added together give a palindrome (12121).

The spelling of 25089613 in words is "twenty-five million, eighty-nine thousand, six hundred thirteen".