20382625 has 8 divisors (see below), whose sum is σ = 25437672. Its totient is φ = 16306000.

The previous prime is 20382619. The next prime is 20382641. The reversal of 20382625 is 52628302.

It can be written as a sum of positive squares in 4 ways, for example, as 6305121 + 14077504 = 2511^2 + 3752^2 .

It is not a de Polignac number, because 20382625 - 2¹³ = 20374433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20382593 and 20382602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81406 + ... + 81655.

It is an arithmetic number, because the mean of its divisors is an integer number (3179709).

Almost surely, 2^20382625 is an apocalyptic number.

20382625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20382625 is a deficient number, since it is larger than the sum of its proper divisors (5055047).

20382625 is an equidigital number, since it uses as much as digits as its factorization.

20382625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163076 (or 163066 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20382625 is about 4514.7120616934. The cubic root of 20382625 is about 273.1618454691.

It can be divided in two parts, 203 and 82625, that added together give a palindrome (82828).

The spelling of 20382625 in words is "twenty million, three hundred eighty-two thousand, six hundred twenty-five".