25271290 has 16 divisors (see below), whose sum is σ = 49623840. Its totient is φ = 9189520.

The previous prime is 25271287. The next prime is 25271291. The reversal of 25271290 is 9217252.

It is not an unprimeable number, because it can be changed into a prime (25271291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114760 + ... + 114979.

It is an arithmetic number, because the mean of its divisors is an integer number (3101490).

Almost surely, 2^25271290 is an apocalyptic number.

25271290 is a deficient number, since it is larger than the sum of its proper divisors (24352550).

25271290 is a wasteful number, since it uses less digits than its factorization.

25271290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229757.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 25271290 is about 5027.0557983774. The cubic root of 25271290 is about 293.4556465921.

The spelling of 25271290 in words is "twenty-five million, two hundred seventy-one thousand, two hundred ninety".