25394994 has 12 divisors (see below), whose sum is σ = 55022526. Its totient is φ = 8464992.

The previous prime is 25394989. The next prime is 25395023. The reversal of 25394994 is 49949352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 8625969 = 4095^2 + 2937^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705399 + ... + 705434.

Almost surely, 2^25394994 is an apocalyptic number.

25394994 is an abundant number, since it is smaller than the sum of its proper divisors (29627532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25394994 is a wasteful number, since it uses less digits than its factorization.

25394994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410841 (or 1410838 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 25394994 is about 5039.3446002432. The cubic root of 25394994 is about 293.9336932239.

The spelling of 25394994 in words is "twenty-five million, three hundred ninety-four thousand, nine hundred ninety-four".