20260925 has 6 divisors (see below), whose sum is σ = 25123578. Its totient is φ = 16208720.

The previous prime is 20260921. The next prime is 20260951. The reversal of 20260925 is 52906202.

It can be written as a sum of positive squares in 3 ways, for example, as 662596 + 19598329 = 814^2 + 4427^2 .

It is not a de Polignac number, because 20260925 - 2² = 20260921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20260894 and 20260903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405194 + ... + 405243.

It is an arithmetic number, because the mean of its divisors is an integer number (4187263).

Almost surely, 2^20260925 is an apocalyptic number.

20260925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20260925 is a deficient number, since it is larger than the sum of its proper divisors (4862653).

20260925 is an equidigital number, since it uses as much as digits as its factorization.

20260925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810447 (or 810442 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20260925 is about 4501.2137252079. The cubic root of 20260925 is about 272.6170975012.

The spelling of 20260925 in words is "twenty million, two hundred sixty thousand, nine hundred twenty-five".