25242666 has 16 divisors (see below), whose sum is σ = 51560064. Its totient is φ = 8235104.

The previous prime is 25242653. The next prime is 25242689. The reversal of 25242666 is 66624252.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44475 + ... + 45038.

It is an arithmetic number, because the mean of its divisors is an integer number (3222504).

Almost surely, 2^25242666 is an apocalyptic number.

25242666 is an abundant number, since it is smaller than the sum of its proper divisors (26317398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25242666 is a wasteful number, since it uses less digits than its factorization.

25242666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89565.

The product of its digits is 34560, while the sum is 33.

The square root of 25242666 is about 5024.2079972867. The cubic root of 25242666 is about 293.3448087223.

The spelling of 25242666 in words is "twenty-five million, two hundred forty-two thousand, six hundred sixty-six".