20300625 has 50 divisors (see below), whose sum is σ = 37989402. Its totient is φ = 10800000.

The previous prime is 20300611. The next prime is 20300627. The reversal of 20300625 is 52600302.

It can be written as a sum of positive squares in 5 ways, for example, as 2178576 + 18122049 = 1476^2 + 4257^2 .

It is not a de Polignac number, because 20300625 - 2⁵ = 20300593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20300598 and 20300607.

It is not an unprimeable number, because it can be changed into a prime (20300627) by changing a digit.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 50425 + ... + 50825.

Almost surely, 2^20300625 is an apocalyptic number.

20300625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20300625 is a deficient number, since it is larger than the sum of its proper divisors (17688777).

20300625 is an frugal number, since it uses more digits than its factorization.

20300625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20300625 is about 4505.6214887627. The cubic root of 20300625 is about 272.7950399780.

Adding to 20300625 its reverse (52600302), we get a palindrome (72900927).

The spelling of 20300625 in words is "twenty million, three hundred thousand, six hundred twenty-five".