25506266 has 8 divisors (see below), whose sum is σ = 38405664. Its totient is φ = 12704380.

The previous prime is 25506263. The next prime is 25506293. The reversal of 25506266 is 66260552.

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

It is not an unprimeable number, because it can be changed into a prime (25506263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23720 + ... + 24771.

It is an arithmetic number, because the mean of its divisors is an integer number (4800708).

Almost surely, 2^25506266 is an apocalyptic number.

25506266 is a deficient number, since it is larger than the sum of its proper divisors (12899398).

25506266 is a wasteful number, since it uses less digits than its factorization.

25506266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48756.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 25506266 is about 5050.3728575225. The cubic root of 25506266 is about 294.3623726746.

The spelling of 25506266 in words is "twenty-five million, five hundred six thousand, two hundred sixty-six".