25990273 has 2 divisors, whose sum is σ = 25990274. Its totient is φ = 25990272.

The previous prime is 25990247. The next prime is 25990291. The reversal of 25990273 is 37209952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 11336689 = 3828^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 25990273 - 2¹³ = 25982081 is a prime.

It is a super-2 number, since 2×25990273² = 1350988581229058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25990073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12995136 + 12995137.

It is an arithmetic number, because the mean of its divisors is an integer number (12995137).

Almost surely, 2^25990273 is an apocalyptic number.

It is an amenable number.

25990273 is a deficient number, since it is larger than the sum of its proper divisors (1).

25990273 is an equidigital number, since it uses as much as digits as its factorization.

25990273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 25990273 is about 5098.0656135440. The cubic root of 25990273 is about 296.2126583875.

The spelling of 25990273 in words is "twenty-five million, nine hundred ninety thousand, two hundred seventy-three".