25278256026 has 48 divisors (see below), whose sum is σ = 55078403328. Its totient is φ = 8378704800.

The previous prime is 25278256021. The next prime is 25278256027. The reversal of 25278256026 is 62065287252.

25278256026 is a `hidden beast` number, since 2 + 5 + 2 + 7 + 82 + 560 + 2 + 6 = 666.

It is a super-3 number, since 3×25278256026³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25278256021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2407500 + ... + 2417976.

It is an arithmetic number, because the mean of its divisors is an integer number (1147466736).

Almost surely, 2^25278256026 is an apocalyptic number.

25278256026 is an abundant number, since it is smaller than the sum of its proper divisors (29800147302).

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

25278256026 is a wasteful number, since it uses less digits than its factorization.

25278256026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227 (or 11224 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 25278256026 in words is "twenty-five billion, two hundred seventy-eight million, two hundred fifty-six thousand, twenty-six".