25492929 has 16 divisors (see below), whose sum is σ = 42378240. Its totient is φ = 13242960.

The previous prime is 25492919. The next prime is 25492931. The reversal of 25492929 is 92929452.

It is not a de Polignac number, because 25492929 - 2⁷ = 25492801 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25492919) 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 15 ways as a sum of consecutive naturals, for example, 54949 + ... + 55410.

It is an arithmetic number, because the mean of its divisors is an integer number (2648640).

Almost surely, 2^25492929 is an apocalyptic number.

It is an amenable number.

25492929 is a deficient number, since it is larger than the sum of its proper divisors (16885311).

25492929 is a wasteful number, since it uses less digits than its factorization.

25492929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110380.

The product of its digits is 116640, while the sum is 42.

The square root of 25492929 is about 5049.0522873110. The cubic root of 25492929 is about 294.3110572392.

The spelling of 25492929 in words is "twenty-five million, four hundred ninety-two thousand, nine hundred twenty-nine".