25236994 has 4 divisors (see below), whose sum is σ = 37855494. Its totient is φ = 12618496.

The previous prime is 25236983. The next prime is 25237013. The reversal of 25236994 is 49963252.

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

It can be written as a sum of positive squares in only one way, i.e., 23765625 + 1471369 = 4875^2 + 1213^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309247 + ... + 6309250.

Almost surely, 2^25236994 is an apocalyptic number.

25236994 is a deficient number, since it is larger than the sum of its proper divisors (12618500).

25236994 is a wasteful number, since it uses less digits than its factorization.

25236994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12618499.

The product of its digits is 116640, while the sum is 40.

The square root of 25236994 is about 5023.6434984979. The cubic root of 25236994 is about 293.3228356551.

The spelling of 25236994 in words is "twenty-five million, two hundred thirty-six thousand, nine hundred ninety-four".