25051325278 has 16 divisors (see below), whose sum is σ = 42951224160. Its totient is φ = 10734758496.

The previous prime is 25051325269. The next prime is 25051325303. The reversal of 25051325278 is 87252315052.

It is a self number, because there is not a number n which added to its sum of digits gives 25051325278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21813 + ... + 224896.

It is an arithmetic number, because the mean of its divisors is an integer number (2684451510).

Almost surely, 2^25051325278 is an apocalyptic number.

25051325278 is a deficient number, since it is larger than the sum of its proper divisors (17899898882).

25051325278 is a wasteful number, since it uses less digits than its factorization.

25051325278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253971.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 25051325278 in words is "twenty-five billion, fifty-one million, three hundred twenty-five thousand, two hundred seventy-eight".