25742494 has 4 divisors (see below), whose sum is σ = 38613744. Its totient is φ = 12871246.

The previous prime is 25742489. The next prime is 25742503. The reversal of 25742494 is 49424752.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435622 + ... + 6435625.

It is an arithmetic number, because the mean of its divisors is an integer number (9653436).

Almost surely, 2^25742494 is an apocalyptic number.

25742494 is a deficient number, since it is larger than the sum of its proper divisors (12871250).

25742494 is a wasteful number, since it uses less digits than its factorization.

25742494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871249.

The product of its digits is 80640, while the sum is 37.

The square root of 25742494 is about 5073.7061404855. The cubic root of 25742494 is about 295.2683338427.

The spelling of 25742494 in words is "twenty-five million, seven hundred forty-two thousand, four hundred ninety-four".