25290272 has 54 divisors (see below), whose sum is σ = 58378887. Its totient is φ = 10753344.

The previous prime is 25290259. The next prime is 25290283. The reversal of 25290272 is 27209252.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 12645136 = 3556^2 + 3556^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3556.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 199073 + ... + 199199.

Almost surely, 2^25290272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25290272

25290272 is an abundant number, since it is smaller than the sum of its proper divisors (33088615).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25290272 is an equidigital number, since it uses as much as digits as its factorization.

25290272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 25290272 is about 5028.9434277987. The cubic root of 25290272 is about 293.5291025570.

The spelling of 25290272 in words is "twenty-five million, two hundred ninety thousand, two hundred seventy-two".