25272889 has 2 divisors, whose sum is σ = 25272890. Its totient is φ = 25272888.

The previous prime is 25272881. The next prime is 25272893. The reversal of 25272889 is 98827252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22014864 + 3258025 = 4692^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 25272889 - 2³ = 25272881 is a prime.

It is not a weakly prime, because it can be changed into another prime (25272881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12636444 + 12636445.

It is an arithmetic number, because the mean of its divisors is an integer number (12636445).

Almost surely, 2^25272889 is an apocalyptic number.

It is an amenable number.

25272889 is a deficient number, since it is larger than the sum of its proper divisors (1).

25272889 is an equidigital number, since it uses as much as digits as its factorization.

25272889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 43.

The square root of 25272889 is about 5027.2148352741. The cubic root of 25272889 is about 293.4618357720.

The spelling of 25272889 in words is "twenty-five million, two hundred seventy-two thousand, eight hundred eighty-nine".