25421514 has 16 divisors (see below), whose sum is σ = 52025952. Its totient is φ = 8276688.

The previous prime is 25421483. The next prime is 25421521. The reversal of 25421514 is 41512452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49009 + ... + 49524.

It is an arithmetic number, because the mean of its divisors is an integer number (3251622).

Almost surely, 2^25421514 is an apocalyptic number.

25421514 is an abundant number, since it is smaller than the sum of its proper divisors (26604438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25421514 is a wasteful number, since it uses less digits than its factorization.

25421514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98581.

The product of its digits is 1600, while the sum is 24.

The square root of 25421514 is about 5041.9752081897. The cubic root of 25421514 is about 294.0359759761.

Adding to 25421514 its reverse (41512452), we get a palindrome (66933966).

The spelling of 25421514 in words is "twenty-five million, four hundred twenty-one thousand, five hundred fourteen".