25240105 has 32 divisors (see below), whose sum is σ = 34583040. Its totient is φ = 17521920.

The previous prime is 25240099. The next prime is 25240109. The reversal of 25240105 is 50104252.

It is not a de Polignac number, because 25240105 - 2⁹ = 25239593 is a prime.

It is a super-2 number, since 2×25240105² = 1274125800822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25240109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160687 + ... + 160843.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^25240105 is an apocalyptic number.

It is an amenable number.

25240105 is a deficient number, since it is larger than the sum of its proper divisors (9342935).

25240105 is a wasteful number, since it uses less digits than its factorization.

25240105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25240105 is about 5023.9531247813. The cubic root of 25240105 is about 293.3348879337.

Adding to 25240105 its reverse (50104252), we get a palindrome (75344357).

The spelling of 25240105 in words is "twenty-five million, two hundred forty thousand, one hundred five".