25457834 has 8 divisors (see below), whose sum is σ = 40196640. Its totient is φ = 12058956.

The previous prime is 25457819. The next prime is 25457867. The reversal of 25457834 is 43875452.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 669943 = 25457834 / (2 + 5 + 4 + 5 + 7 + 8 + 3 + 4).

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, 334934 + ... + 335009.

It is an arithmetic number, because the mean of its divisors is an integer number (5024580).

Almost surely, 2^25457834 is an apocalyptic number.

25457834 is a deficient number, since it is larger than the sum of its proper divisors (14738806).

25457834 is a wasteful number, since it uses less digits than its factorization.

25457834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669964.

The product of its digits is 134400, while the sum is 38.

The square root of 25457834 is about 5045.5756856874. The cubic root of 25457834 is about 294.1759401650.

The spelling of 25457834 in words is "twenty-five million, four hundred fifty-seven thousand, eight hundred thirty-four".