25396066 has 4 divisors (see below), whose sum is σ = 38094102. Its totient is φ = 12698032.

The previous prime is 25396057. The next prime is 25396081. The reversal of 25396066 is 66069352.

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., 22231225 + 3164841 = 4715^2 + 1779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349015 + ... + 6349018.

Almost surely, 2^25396066 is an apocalyptic number.

25396066 is a deficient number, since it is larger than the sum of its proper divisors (12698036).

25396066 is a wasteful number, since it uses less digits than its factorization.

25396066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12698035.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 25396066 is about 5039.4509621585. The cubic root of 25396066 is about 293.9378291110.

The spelling of 25396066 in words is "twenty-five million, three hundred ninety-six thousand, sixty-six".