25490211 has 8 divisors (see below), whose sum is σ = 34055760. Its totient is φ = 16959072.

The previous prime is 25490177. The next prime is 25490221. The reversal of 25490211 is 11209452.

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

It is not a de Polignac number, because 25490211 - 2⁹ = 25489699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25490221) 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, 6820 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (4256970).

Almost surely, 2^25490211 is an apocalyptic number.

25490211 is a deficient number, since it is larger than the sum of its proper divisors (8565549).

25490211 is a wasteful number, since it uses less digits than its factorization.

25490211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 25490211 is about 5048.7831207133. The cubic root of 25490211 is about 294.3005972683.

Adding to 25490211 its reverse (11209452), we get a palindrome (36699663).

The spelling of 25490211 in words is "twenty-five million, four hundred ninety thousand, two hundred eleven".