25709274930 has 32 divisors (see below), whose sum is σ = 65331805824. Its totient is φ = 6452523776.

The previous prime is 25709274923. The next prime is 25709274931. The reversal of 25709274930 is 3947290752.

25709274930 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 25709274930.

It is not an unprimeable number, because it can be changed into a prime (25709274931) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 25204662 + ... + 25205681.

It is an arithmetic number, because the mean of its divisors is an integer number (2041618932).

Almost surely, 2^25709274930 is an apocalyptic number.

25709274930 is an abundant number, since it is smaller than the sum of its proper divisors (39622530894).

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

25709274930 is a wasteful number, since it uses less digits than its factorization.

25709274930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50410370.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 25709274930 in words is "twenty-five billion, seven hundred nine million, two hundred seventy-four thousand, nine hundred thirty".