20652225 has 24 divisors (see below), whose sum is σ = 37250592. Its totient is φ = 10012800.

The previous prime is 20652187. The next prime is 20652239. The reversal of 20652225 is 52225602.

It is not a de Polignac number, because 20652225 - 2¹⁰ = 20651201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20652195 and 20652204.

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, 11692 + ... + 13341.

It is an arithmetic number, because the mean of its divisors is an integer number (1552108).

Almost surely, 2^20652225 is an apocalyptic number.

20652225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20652225 is a deficient number, since it is larger than the sum of its proper divisors (16598367).

20652225 is a wasteful number, since it uses less digits than its factorization.

20652225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25057 (or 25052 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20652225 is about 4544.4719165157. The cubic root of 20652225 is about 274.3609403118.

Adding to 20652225 its reverse (52225602), we get a palindrome (72877827).

The spelling of 20652225 in words is "twenty million, six hundred fifty-two thousand, two hundred twenty-five".