20183725 has 12 divisors (see below), whose sum is σ = 25501716. Its totient is φ = 15841280.

The previous prime is 20183711. The next prime is 20183749. The reversal of 20183725 is 52738102.

It can be written as a sum of positive squares in 6 ways, for example, as 946729 + 19236996 = 973^2 + 4386^2 .

It is not a de Polignac number, because 20183725 - 2⁵ = 20183693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20183693 and 20183702.

It is a congruent 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, 6292 + ... + 8941.

It is an arithmetic number, because the mean of its divisors is an integer number (2125143).

Almost surely, 2^20183725 is an apocalyptic number.

20183725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20183725 is a deficient number, since it is larger than the sum of its proper divisors (5317991).

20183725 is a wasteful number, since it uses less digits than its factorization.

20183725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15296 (or 15291 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 20183725 is about 4492.6300760245. The cubic root of 20183725 is about 272.2704067297.

The spelling of 20183725 in words is "twenty million, one hundred eighty-three thousand, seven hundred twenty-five".