25804192036 has 18 divisors (see below), whose sum is σ = 52529962758. Its totient is φ = 11058939360.

The previous prime is 25804192031. The next prime is 25804192121. The reversal of 25804192036 is 63029140852.

It can be written as a sum of positive squares in only one way, i.e., 22503000100 + 3301191936 = 150010^2 + 57456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25804192036.

It is not an unprimeable number, because it can be changed into a prime (25804192031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65826825 + ... + 65827216.

Almost surely, 2^25804192036 is an apocalyptic number.

It is an amenable number.

25804192036 is an abundant number, since it is smaller than the sum of its proper divisors (26725770722).

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

25804192036 is a wasteful number, since it uses less digits than its factorization.

25804192036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131654059 (or 131654050 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 25804192036 in words is "twenty-five billion, eight hundred four million, one hundred ninety-two thousand, thirty-six".