20225403 has 16 divisors (see below), whose sum is σ = 32688000. Its totient is φ = 12257640.

The previous prime is 20225371. The next prime is 20225419. The reversal of 20225403 is 30452202.

It is not a de Polignac number, because 20225403 - 2⁵ = 20225371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20225503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33753 + ... + 34346.

It is an arithmetic number, because the mean of its divisors is an integer number (2043000).

Almost surely, 2^20225403 is an apocalyptic number.

20225403 is a deficient number, since it is larger than the sum of its proper divisors (12462597).

20225403 is a wasteful number, since it uses less digits than its factorization.

20225403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68119 (or 68113 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20225403 is about 4497.2661695746. The cubic root of 20225403 is about 272.4576844205.

Adding to 20225403 its reverse (30452202), we get a palindrome (50677605).

The spelling of 20225403 in words is "twenty million, two hundred twenty-five thousand, four hundred three".