25434105 has 32 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 12949440.

The previous prime is 25434089. The next prime is 25434107. The reversal of 25434105 is 50143452.

It is not a de Polignac number, because 25434105 - 2⁴ = 25434089 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 (25434107) 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 31 ways as a sum of consecutive naturals, for example, 38266 + ... + 38924.

It is an arithmetic number, because the mean of its divisors is an integer number (1330560).

Almost surely, 2^25434105 is an apocalyptic number.

It is an amenable number.

25434105 is a deficient number, since it is larger than the sum of its proper divisors (17143815).

25434105 is a wasteful number, since it uses less digits than its factorization.

25434105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25434105 is about 5043.2236714229. The cubic root of 25434105 is about 294.0845122398.

Adding to 25434105 its reverse (50143452), we get a palindrome (75577557).

The spelling of 25434105 in words is "twenty-five million, four hundred thirty-four thousand, one hundred five".