25266642 has 8 divisors (see below), whose sum is σ = 50533296. Its totient is φ = 8422212.

The previous prime is 25266613. The next prime is 25266707. The reversal of 25266642 is 24666252.

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

25266642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2105548 + ... + 2105559.

It is an arithmetic number, because the mean of its divisors is an integer number (6316662).

Almost surely, 2^25266642 is an apocalyptic number.

25266642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25266642 is a wasteful number, since it uses less digits than its factorization.

25266642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211112.

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

The square root of 25266642 is about 5026.5934786891. The cubic root of 25266642 is about 293.4376542976.

The spelling of 25266642 in words is "twenty-five million, two hundred sixty-six thousand, six hundred forty-two".