25457434 has 8 divisors (see below), whose sum is σ = 38669760. Its totient is φ = 12567516.

The previous prime is 25457429. The next prime is 25457441. The reversal of 25457434 is 43475452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25457434.

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, 80404 + ... + 80719.

It is an arithmetic number, because the mean of its divisors is an integer number (4833720).

Almost surely, 2^25457434 is an apocalyptic number.

25457434 is a deficient number, since it is larger than the sum of its proper divisors (13212326).

25457434 is a wasteful number, since it uses less digits than its factorization.

25457434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161204.

The product of its digits is 67200, while the sum is 34.

The square root of 25457434 is about 5045.5360468438. The cubic root of 25457434 is about 294.1743994343.

The spelling of 25457434 in words is "twenty-five million, four hundred fifty-seven thousand, four hundred thirty-four".