20225485 has 24 divisors (see below), whose sum is σ = 29154816. Its totient is φ = 13416480.

The previous prime is 20225479. The next prime is 20225503. The reversal of 20225485 is 58452202.

It is not a de Polignac number, because 20225485 - 2³ = 20225477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6264 + ... + 8926.

It is an arithmetic number, because the mean of its divisors is an integer number (1214784).

Almost surely, 2^20225485 is an apocalyptic number.

It is an amenable number.

20225485 is a deficient number, since it is larger than the sum of its proper divisors (8929331).

20225485 is a wasteful number, since it uses less digits than its factorization.

20225485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 20225485 is about 4497.2752862150. The cubic root of 20225485 is about 272.4580526291.

Adding to 20225485 its reverse (58452202), we get a palindrome (78677687).

The spelling of 20225485 in words is "twenty million, two hundred twenty-five thousand, four hundred eighty-five".