25123616078 has 16 divisors (see below), whose sum is σ = 41132133504. Its totient is φ = 11414058360.

The previous prime is 25123616071. The next prime is 25123616093. The reversal of 25123616078 is 87061632152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123616071) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 243650 + ... + 331077.

It is an arithmetic number, because the mean of its divisors is an integer number (2570758344).

Almost surely, 2^25123616078 is an apocalyptic number.

25123616078 is a deficient number, since it is larger than the sum of its proper divisors (16008517426).

25123616078 is a wasteful number, since it uses less digits than its factorization.

25123616078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576727.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 25123616078 in words is "twenty-five billion, one hundred twenty-three million, six hundred sixteen thousand, seventy-eight".