25123126 has 16 divisors (see below), whose sum is σ = 43133184. Its totient is φ = 10750824.

The previous prime is 25123103. The next prime is 25123129. The reversal of 25123126 is 62132152.

It is a junction number, because it is equal to n+sod(n) for n = 25123097 and 25123106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15511 + ... + 17053.

It is an arithmetic number, because the mean of its divisors is an integer number (2695824).

Almost surely, 2^25123126 is an apocalyptic number.

25123126 is a deficient number, since it is larger than the sum of its proper divisors (18010058).

25123126 is a wasteful number, since it uses less digits than its factorization.

25123126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715.

The product of its digits is 720, while the sum is 22.

The square root of 25123126 is about 5012.2974772054. The cubic root of 25123126 is about 292.8810180586.

Adding to 25123126 its reverse (62132152), we get a palindrome (87255278).

The spelling of 25123126 in words is "twenty-five million, one hundred twenty-three thousand, one hundred twenty-six".