25255278 has 12 divisors (see below), whose sum is σ = 54719808. Its totient is φ = 8418420.

The previous prime is 25255271. The next prime is 25255283. The reversal of 25255278 is 87255252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 701518 + ... + 701553.

It is an arithmetic number, because the mean of its divisors is an integer number (4559984).

Almost surely, 2^25255278 is an apocalyptic number.

25255278 is an abundant number, since it is smaller than the sum of its proper divisors (29464530).

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

25255278 is a wasteful number, since it uses less digits than its factorization.

25255278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403079 (or 1403076 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 25255278 is about 5025.4629637477. The cubic root of 25255278 is about 293.3936552367.

The spelling of 25255278 in words is "twenty-five million, two hundred fifty-five thousand, two hundred seventy-eight".