25051239 has 12 divisors (see below), whose sum is σ = 36248472. Its totient is φ = 16671600.

The previous prime is 25051219. The next prime is 25051277. The reversal of 25051239 is 93215052.

25051239 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 25051239 - 2¹¹ = 25049191 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3844 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (3020706).

Almost surely, 2^25051239 is an apocalyptic number.

25051239 is a deficient number, since it is larger than the sum of its proper divisors (11197233).

25051239 is a wasteful number, since it uses less digits than its factorization.

25051239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878 (or 4875 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 25051239 is about 5005.1212772519. The cubic root of 25051239 is about 292.6014024929.

The spelling of 25051239 in words is "twenty-five million, fifty-one thousand, two hundred thirty-nine".