25106249 has 16 divisors (see below), whose sum is σ = 29884416. Its totient is φ = 20638800.

The previous prime is 25106231. The next prime is 25106251. The reversal of 25106249 is 94260152.

It is a happy number.

It is not a de Polignac number, because 25106249 - 2¹⁶ = 25040713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25106269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27104 + ... + 28014.

It is an arithmetic number, because the mean of its divisors is an integer number (1867776).

Almost surely, 2^25106249 is an apocalyptic number.

It is an amenable number.

25106249 is a deficient number, since it is larger than the sum of its proper divisors (4778167).

25106249 is a wasteful number, since it uses less digits than its factorization.

25106249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 25106249 is about 5010.6136350750. The cubic root of 25106249 is about 292.8154203274.

The spelling of 25106249 in words is "twenty-five million, one hundred six thousand, two hundred forty-nine".