25480271 has 4 divisors (see below), whose sum is σ = 25912200. Its totient is φ = 25048344.

The previous prime is 25480261. The next prime is 25480303. The reversal of 25480271 is 17208452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25480271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215876 + ... + 215993.

It is an arithmetic number, because the mean of its divisors is an integer number (6478050).

Almost surely, 2^25480271 is an apocalyptic number.

25480271 is a deficient number, since it is larger than the sum of its proper divisors (431929).

25480271 is an equidigital number, since it uses as much as digits as its factorization.

25480271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431928.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 25480271 is about 5047.7986291056. The cubic root of 25480271 is about 294.2623377672.

The spelling of 25480271 in words is "twenty-five million, four hundred eighty thousand, two hundred seventy-one".