25655078 has 4 divisors (see below), whose sum is σ = 38482620. Its totient is φ = 12827538.

The previous prime is 25655039. The next prime is 25655081. The reversal of 25655078 is 87055652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6413768 + ... + 6413771.

It is an arithmetic number, because the mean of its divisors is an integer number (9620655).

Almost surely, 2^25655078 is an apocalyptic number.

25655078 is a deficient number, since it is larger than the sum of its proper divisors (12827542).

25655078 is a wasteful number, since it uses less digits than its factorization.

25655078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827541.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 25655078 is about 5065.0842046308. The cubic root of 25655078 is about 294.9337321225.

The spelling of 25655078 in words is "twenty-five million, six hundred fifty-five thousand, seventy-eight".