25239105 has 12 divisors (see below), whose sum is σ = 43747860. Its totient is φ = 13460832.

The previous prime is 25239061. The next prime is 25239107. The reversal of 25239105 is 50193252.

It can be written as a sum of positive squares in 2 ways, for example, as 3560769 + 21678336 = 1887^2 + 4656^2 .

It is not a de Polignac number, because 25239105 - 2⁷ = 25238977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25239107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280390 + ... + 280479.

It is an arithmetic number, because the mean of its divisors is an integer number (3645655).

Almost surely, 2^25239105 is an apocalyptic number.

It is an amenable number.

25239105 is a deficient number, since it is larger than the sum of its proper divisors (18508755).

25239105 is a wasteful number, since it uses less digits than its factorization.

25239105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560880 (or 560877 counting only the distinct ones).

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

The square root of 25239105 is about 5023.8536005740. The cubic root of 25239105 is about 293.3310139566.

It can be divided in two parts, 2523 and 9105, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 25239105 in words is "twenty-five million, two hundred thirty-nine thousand, one hundred five".