25790151956 has 6 divisors (see below), whose sum is σ = 45132765930. Its totient is φ = 12895075976.

The previous prime is 25790151953. The next prime is 25790151983. The reversal of 25790151956 is 65915109752.

It can be written as a sum of positive squares in only one way, i.e., 23094880900 + 2695271056 = 151970^2 + 51916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25790151953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223768991 + ... + 3223768998.

It is an arithmetic number, because the mean of its divisors is an integer number (7522127655).

Almost surely, 2^25790151956 is an apocalyptic number.

It is an amenable number.

25790151956 is a deficient number, since it is larger than the sum of its proper divisors (19342613974).

25790151956 is a wasteful number, since it uses less digits than its factorization.

25790151956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447537993 (or 6447537991 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 50.

The spelling of 25790151956 in words is "twenty-five billion, seven hundred ninety million, one hundred fifty-one thousand, nine hundred fifty-six".