25825625670 has 64 divisors (see below), whose sum is σ = 69651477504. Its totient is φ = 6080680320.

The previous prime is 25825625663. The next prime is 25825625699. The reversal of 25825625670 is 7652652852.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1430586 + ... + 1448525.

It is an arithmetic number, because the mean of its divisors is an integer number (1088304336).

Almost surely, 2^25825625670 is an apocalyptic number.

25825625670 is an abundant number, since it is smaller than the sum of its proper divisors (43825851834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25825625670 is a wasteful number, since it uses less digits than its factorization.

25825625670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879157.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 25825625670 in words is "twenty-five billion, eight hundred twenty-five million, six hundred twenty-five thousand, six hundred seventy".