25480645 has 8 divisors (see below), whose sum is σ = 30818304. Its totient is φ = 20223504.

The previous prime is 25480643. The next prime is 25480657. The reversal of 25480645 is 54608452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25480645 - 2¹ = 25480643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25480645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480643) 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, 19429 + ... + 20698.

It is an arithmetic number, because the mean of its divisors is an integer number (3852288).

Almost surely, 2^25480645 is an apocalyptic number.

It is an amenable number.

25480645 is a deficient number, since it is larger than the sum of its proper divisors (5337659).

25480645 is a wasteful number, since it uses less digits than its factorization.

25480645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40259.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 25480645 is about 5047.8356748214. The cubic root of 25480645 is about 294.2637774899.

The spelling of 25480645 in words is "twenty-five million, four hundred eighty thousand, six hundred forty-five".