25820078 has 8 divisors (see below), whose sum is σ = 39674880. Its totient is φ = 12595120.

The previous prime is 25820023. The next prime is 25820083. The reversal of 25820078 is 87002852.

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

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, 157358 + ... + 157521.

It is an arithmetic number, because the mean of its divisors is an integer number (4959360).

Almost surely, 2^25820078 is an apocalyptic number.

25820078 is a deficient number, since it is larger than the sum of its proper divisors (13854802).

25820078 is a wasteful number, since it uses less digits than its factorization.

25820078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314922.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 25820078 is about 5081.3460815024. The cubic root of 25820078 is about 295.5646677697.

The spelling of 25820078 in words is "twenty-five million, eight hundred twenty thousand, seventy-eight".