25280585 has 8 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 18385840.

The previous prime is 25280573. The next prime is 25280587. The reversal of 25280585 is 58508252.

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

It is not a de Polignac number, because 25280585 - 2¹⁶ = 25215049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25280587) 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, 229769 + ... + 229878.

It is an arithmetic number, because the mean of its divisors is an integer number (4136832).

Almost surely, 2^25280585 is an apocalyptic number.

It is an amenable number.

25280585 is a deficient number, since it is larger than the sum of its proper divisors (7814071).

25280585 is a wasteful number, since it uses less digits than its factorization.

25280585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459663.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 25280585 is about 5027.9802107805. The cubic root of 25280585 is about 293.4916206940.

The spelling of 25280585 in words is "twenty-five million, two hundred eighty thousand, five hundred eighty-five".