20362357825 has 6 divisors (see below), whose sum is σ = 25249323734. Its totient is φ = 16289886240.

The previous prime is 20362357823. The next prime is 20362357853. The reversal of 20362357825 is 52875326302.

It can be written as a sum of positive squares in 3 ways, for example, as 155451024 + 20206906801 = 12468^2 + 142151^2 .

It is not a de Polignac number, because 20362357825 - 2¹ = 20362357823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20362357823) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 407247132 + ... + 407247181.

Almost surely, 2^20362357825 is an apocalyptic number.

20362357825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20362357825 is a deficient number, since it is larger than the sum of its proper divisors (4886965909).

20362357825 is an equidigital number, since it uses as much as digits as its factorization.

20362357825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814494323 (or 814494318 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 20362357825 in words is "twenty billion, three hundred sixty-two million, three hundred fifty-seven thousand, eight hundred twenty-five".