20283625 has 8 divisors (see below), whose sum is σ = 25314120. Its totient is φ = 16226800.

The previous prime is 20283617. The next prime is 20283667. The reversal of 20283625 is 52638202.

It can be written as a sum of positive squares in 4 ways, for example, as 3873024 + 16410601 = 1968^2 + 4051^2 .

It is not a de Polignac number, because 20283625 - 2³ = 20283617 is a prime.

It is a super-2 number, since 2×20283625² = 822850886281250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20283593 and 20283602.

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, 81010 + ... + 81259.

It is an arithmetic number, because the mean of its divisors is an integer number (3164265).

Almost surely, 2^20283625 is an apocalyptic number.

20283625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20283625 is a deficient number, since it is larger than the sum of its proper divisors (5030495).

20283625 is an equidigital number, since it uses as much as digits as its factorization.

20283625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162284 (or 162274 counting only the distinct ones).

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

The square root of 20283625 is about 4503.7345614501. The cubic root of 20283625 is about 272.7188713742.

The spelling of 20283625 in words is "twenty million, two hundred eighty-three thousand, six hundred twenty-five".