25650078 has 8 divisors (see below), whose sum is σ = 51300168. Its totient is φ = 8550024.

The previous prime is 25650047. The next prime is 25650101. The reversal of 25650078 is 87005652.

It is a happy number.

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

25650078 is an admirable number.

It is a congruent 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, 2137501 + ... + 2137512.

It is an arithmetic number, because the mean of its divisors is an integer number (6412521).

Almost surely, 2^25650078 is an apocalyptic number.

25650078 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.

25650078 is a wasteful number, since it uses less digits than its factorization.

25650078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275018.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 25650078 is about 5064.5906053698. The cubic root of 25650078 is about 294.9145706856.

The spelling of 25650078 in words is "twenty-five million, six hundred fifty thousand, seventy-eight".