25078025078 has 16 divisors (see below), whose sum is σ = 37996350480. Its totient is φ = 12412620000.

The previous prime is 25078025053. The next prime is 25078025101. The reversal of 25078025078 is 87052087052.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1993733 + ... + 2006271.

It is an arithmetic number, because the mean of its divisors is an integer number (2374771905).

Almost surely, 2^25078025078 is an apocalyptic number.

25078025078 is a deficient number, since it is larger than the sum of its proper divisors (12918325402).

25078025078 is a wasteful number, since it uses less digits than its factorization.

25078025078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22543.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 25078025078 in words is "twenty-five billion, seventy-eight million, twenty-five thousand, seventy-eight".