25434287 has 8 divisors (see below), whose sum is σ = 25919040. Its totient is φ = 24953760.

The previous prime is 25434263. The next prime is 25434307. The reversal of 25434287 is 78243452.

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

It is a cyclic number.

It is not a de Polignac number, because 25434287 - 2¹² = 25430191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12737 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (3239880).

Almost surely, 2^25434287 is an apocalyptic number.

25434287 is a deficient number, since it is larger than the sum of its proper divisors (484753).

25434287 is a wasteful number, since it uses less digits than its factorization.

25434287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its digits is 53760, while the sum is 35.

The square root of 25434287 is about 5043.2417154049. The cubic root of 25434287 is about 294.0852137028.

The spelling of 25434287 in words is "twenty-five million, four hundred thirty-four thousand, two hundred eighty-seven".