25065994 has 4 divisors (see below), whose sum is σ = 37598994. Its totient is φ = 12532996.

The previous prime is 25065991. The next prime is 25066001. The reversal of 25065994 is 49956052.

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., 17530969 + 7535025 = 4187^2 + 2745^2 .

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 not an unprimeable number, because it can be changed into a prime (25065991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266497 + ... + 6266500.

Almost surely, 2^25065994 is an apocalyptic number.

25065994 is a deficient number, since it is larger than the sum of its proper divisors (12533000).

25065994 is a wasteful number, since it uses less digits than its factorization.

25065994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532999.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 25065994 is about 5006.5950505308. The cubic root of 25065994 is about 292.6588379268.

The spelling of 25065994 in words is "twenty-five million, sixty-five thousand, nine hundred ninety-four".