25512434 has 8 divisors (see below), whose sum is σ = 38503920. Its totient is φ = 12677796.

The previous prime is 25512433. The next prime is 25512437. The reversal of 25512434 is 43421552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25512433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38804 + ... + 39455.

It is an arithmetic number, because the mean of its divisors is an integer number (4812990).

Almost surely, 2^25512434 is an apocalyptic number.

25512434 is a deficient number, since it is larger than the sum of its proper divisors (12991486).

25512434 is a wasteful number, since it uses less digits than its factorization.

25512434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78424.

The product of its digits is 4800, while the sum is 26.

The square root of 25512434 is about 5050.9834685930. The cubic root of 25512434 is about 294.3860986195.

Adding to 25512434 its reverse (43421552), we get a palindrome (68933986).

The spelling of 25512434 in words is "twenty-five million, five hundred twelve thousand, four hundred thirty-four".