20253033 has 6 divisors (see below), whose sum is σ = 29254394. Its totient is φ = 13502016.

The previous prime is 20253029. The next prime is 20253073. The reversal of 20253033 is 33035202.

It can be written as a sum of positive squares in only one way, i.e., 20142144 + 110889 = 4488^2 + 333^2 .

It is not a de Polignac number, because 20253033 - 2² = 20253029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20252997 and 20253015.

It is not an unprimeable number, because it can be changed into a prime (20253073) 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 5 ways as a sum of consecutive naturals, for example, 1125160 + ... + 1125177.

Almost surely, 2^20253033 is an apocalyptic number.

It is an amenable number.

20253033 is a deficient number, since it is larger than the sum of its proper divisors (9001361).

20253033 is a wasteful number, since it uses less digits than its factorization.

20253033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250343 (or 2250340 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 20253033 is about 4500.3369873822. The cubic root of 20253033 is about 272.5816964597.

Adding to 20253033 its reverse (33035202), we get a palindrome (53288235).

It can be divided in two parts, 202 and 53033, that added together give a palindrome (53235).

The spelling of 20253033 in words is "twenty million, two hundred fifty-three thousand, thirty-three".