25850372740 has 24 divisors (see below), whose sum is σ = 54289636632. Its totient is φ = 10339415040.

The previous prime is 25850372731. The next prime is 25850372741. The reversal of 25850372740 is 4727305852.

It can be written as a sum of positive squares in 4 ways, for example, as 30382144 + 25819990596 = 5512^2 + 160686^2 .

It is not an unprimeable number, because it can be changed into a prime (25850372741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310350 + ... + 384730.

It is an arithmetic number, because the mean of its divisors is an integer number (2262068193).

Almost surely, 2^25850372740 is an apocalyptic number.

25850372740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25850372740 is an abundant number, since it is smaller than the sum of its proper divisors (28439263892).

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

25850372740 is a wasteful number, since it uses less digits than its factorization.

25850372740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91767 (or 91765 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 25850372740 in words is "twenty-five billion, eight hundred fifty million, three hundred seventy-two thousand, seven hundred forty".