25479089 has 2 divisors, whose sum is σ = 25479090. Its totient is φ = 25479088.

The previous prime is 25479079. The next prime is 25479119. The reversal of 25479089 is 98097452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23425600 + 2053489 = 4840^2 + 1433^2 .

It is a cyclic number.

It is not a de Polignac number, because 25479089 - 2²⁴ = 8701873 is a prime.

It is not a weakly prime, because it can be changed into another prime (25479049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12739544 + 12739545.

It is an arithmetic number, because the mean of its divisors is an integer number (12739545).

Almost surely, 2^25479089 is an apocalyptic number.

It is an amenable number.

25479089 is a deficient number, since it is larger than the sum of its proper divisors (1).

25479089 is an equidigital number, since it uses as much as digits as its factorization.

25479089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 25479089 is about 5047.6815470075. The cubic root of 25479089 is about 294.2577875348.

The spelling of 25479089 in words is "twenty-five million, four hundred seventy-nine thousand, eighty-nine".