25025555055278 has 4 divisors (see below), whose sum is σ = 37538332582920. Its totient is φ = 12512777527638.

The previous prime is 25025555055227. The next prime is 25025555055283. The reversal of 25025555055278 is 87255055552052.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256388763818 + ... + 6256388763821.

It is an arithmetic number, because the mean of its divisors is an integer number (9384583145730).

Almost surely, 2^{25025555055278} is an apocalyptic number.

25025555055278 is a deficient number, since it is larger than the sum of its proper divisors (12512777527642).

25025555055278 is a wasteful number, since it uses less digits than its factorization.

25025555055278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512777527641.

The product of its (nonzero) digits is 35000000, while the sum is 56.

The spelling of 25025555055278 in words is "twenty-five trillion, twenty-five billion, five hundred fifty-five million, fifty-five thousand, two hundred seventy-eight".