20252235 has 16 divisors (see below), whose sum is σ = 32509440. Its totient is φ = 10765920.

The previous prime is 20252231. The next prime is 20252273. The reversal of 20252235 is 53225202.

It is not a de Polignac number, because 20252235 - 2² = 20252231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20252231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926 + ... + 7004.

It is an arithmetic number, because the mean of its divisors is an integer number (2031840).

Almost surely, 2^20252235 is an apocalyptic number.

20252235 is a deficient number, since it is larger than the sum of its proper divisors (12257205).

20252235 is a wasteful number, since it uses less digits than its factorization.

20252235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20252235 is about 4500.2483264816. The cubic root of 20252235 is about 272.5781163696.

Adding to 20252235 its reverse (53225202), we get a palindrome (73477437).

The spelling of 20252235 in words is "twenty million, two hundred fifty-two thousand, two hundred thirty-five".