20360287825 has 12 divisors (see below), whose sum is σ = 25392697308. Its totient is φ = 16194075200.

The previous prime is 20360287819. The next prime is 20360287837. The reversal of 20360287825 is 52878206302.

It can be written as a sum of positive squares in 6 ways, for example, as 759167809 + 19601120016 = 27553^2 + 140004^2 .

It is not a de Polignac number, because 20360287825 - 2¹⁹ = 20359763537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2349466 + ... + 2358115.

It is an arithmetic number, because the mean of its divisors is an integer number (2116058109).

Almost surely, 2^20360287825 is an apocalyptic number.

20360287825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20360287825 is a deficient number, since it is larger than the sum of its proper divisors (5032409483).

20360287825 is a wasteful number, since it uses less digits than its factorization.

20360287825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707764 (or 4707759 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 20360287825 in words is "twenty billion, three hundred sixty million, two hundred eighty-seven thousand, eight hundred twenty-five".