25204971 has 8 divisors (see below), whose sum is σ = 36661824. Its totient is φ = 15275720.

The previous prime is 25204943. The next prime is 25204979. The reversal of 25204971 is 17940252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25204971 - 2⁷ = 25204843 is a prime.

It is a super-2 number, since 2×25204971² = 1270581126221682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25204979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381861 + ... + 381926.

It is an arithmetic number, because the mean of its divisors is an integer number (4582728).

Almost surely, 2^25204971 is an apocalyptic number.

25204971 is a deficient number, since it is larger than the sum of its proper divisors (11456853).

25204971 is a wasteful number, since it uses less digits than its factorization.

25204971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763801.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 25204971 is about 5020.4552582410. The cubic root of 25204971 is about 293.1987182199.

The spelling of 25204971 in words is "twenty-five million, two hundred four thousand, nine hundred seventy-one".