25434842 has 8 divisors (see below), whose sum is σ = 39082932. Its totient is φ = 12407200.

The previous prime is 25434821. The next prime is 25434881. The reversal of 25434842 is 24843452.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 5193841 = 4499^2 + 2279^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25434799 and 25434808.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 155009 + ... + 155172.

Almost surely, 2^25434842 is an apocalyptic number.

25434842 is a deficient number, since it is larger than the sum of its proper divisors (13648090).

25434842 is a wasteful number, since it uses less digits than its factorization.

25434842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310224.

The product of its digits is 30720, while the sum is 32.

The square root of 25434842 is about 5043.2967392371. The cubic root of 25434842 is about 294.0873527590.

The spelling of 25434842 in words is "twenty-five million, four hundred thirty-four thousand, eight hundred forty-two".