20250353 has 4 divisors (see below), whose sum is σ = 20582388. Its totient is φ = 19918320.

The previous prime is 20250343. The next prime is 20250361. The reversal of 20250353 is 35305202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35305202 = 2 ⋅17652601.

It can be written as a sum of positive squares in 2 ways, for example, as 7491169 + 12759184 = 2737^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 20250353 - 2⁴ = 20250337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20250343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165926 + ... + 166047.

It is an arithmetic number, because the mean of its divisors is an integer number (5145597).

Almost surely, 2^20250353 is an apocalyptic number.

It is an amenable number.

20250353 is a deficient number, since it is larger than the sum of its proper divisors (332035).

20250353 is an equidigital number, since it uses as much as digits as its factorization.

20250353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332034.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 20250353 is about 4500.0392220513. The cubic root of 20250353 is about 272.5696727269.

Adding to 20250353 its reverse (35305202), we get a palindrome (55555555).

The spelling of 20250353 in words is "twenty million, two hundred fifty thousand, three hundred fifty-three".