25504273 has 2 divisors, whose sum is σ = 25504274. Its totient is φ = 25504272.

The previous prime is 25504261. The next prime is 25504277. The reversal of 25504273 is 37240552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 10387729 = 3888^2 + 3223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25504273 is a prime.

It is not a weakly prime, because it can be changed into another prime (25504277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752136 + 12752137.

It is an arithmetic number, because the mean of its divisors is an integer number (12752137).

Almost surely, 2^25504273 is an apocalyptic number.

It is an amenable number.

25504273 is a deficient number, since it is larger than the sum of its proper divisors (1).

25504273 is an equidigital number, since it uses as much as digits as its factorization.

25504273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25504273 is about 5050.1755415035. The cubic root of 25504273 is about 294.3547055457.

The spelling of 25504273 in words is "twenty-five million, five hundred four thousand, two hundred seventy-three".