20368825 has 12 divisors (see below), whose sum is σ = 25605628. Its totient is φ = 16070400.

The previous prime is 20368819. The next prime is 20368837. The reversal of 20368825 is 52886302.

It can be written as a sum of positive squares in 6 ways, for example, as 3493161 + 16875664 = 1869^2 + 4108^2 .

It is not a de Polignac number, because 20368825 - 2⁵ = 20368793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3756 + ... + 7405.

Almost surely, 2^20368825 is an apocalyptic number.

20368825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20368825 is a deficient number, since it is larger than the sum of its proper divisors (5236803).

20368825 is a wasteful number, since it uses less digits than its factorization.

20368825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244 (or 11239 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20368825 is about 4513.1834662464. The cubic root of 20368825 is about 273.1001837266.

The spelling of 20368825 in words is "twenty million, three hundred sixty-eight thousand, eight hundred twenty-five".