25025278045 has 16 divisors (see below), whose sum is σ = 30637005120. Its totient is φ = 19617945984.

The previous prime is 25025278027. The next prime is 25025278051. The reversal of 25025278045 is 54087252052.

It is a cyclic number.

It is not a de Polignac number, because 25025278045 - 2⁷ = 25025277917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25025277989 and 25025278007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43179 + ... + 227848.

It is an arithmetic number, because the mean of its divisors is an integer number (1914812820).

Almost surely, 2^25025278045 is an apocalyptic number.

It is an amenable number.

25025278045 is a deficient number, since it is larger than the sum of its proper divisors (5611727075).

25025278045 is a wasteful number, since it uses less digits than its factorization.

25025278045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271404.

The product of its (nonzero) digits is 224000, while the sum is 40.

The spelling of 25025278045 in words is "twenty-five billion, twenty-five million, two hundred seventy-eight thousand, forty-five".