20053450 has 12 divisors (see below), whose sum is σ = 37299510. Its totient is φ = 8021360.

The previous prime is 20053433. The next prime is 20053457. The reversal of 20053450 is 5435002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13329801 + 6723649 = 3651^2 + 2593^2 .

It is not an unprimeable number, because it can be changed into a prime (20053457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200485 + ... + 200584.

Almost surely, 2^20053450 is an apocalyptic number.

20053450 is a deficient number, since it is larger than the sum of its proper divisors (17246060).

20053450 is a wasteful number, since it uses less digits than its factorization.

20053450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401081 (or 401076 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20053450 is about 4478.1078593531. The cubic root of 20053450 is about 271.6833559362.

Adding to 20053450 its reverse (5435002), we get a palindrome (25488452).

It can be divided in two parts, 20053 and 450, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20053450 in words is "twenty million, fifty-three thousand, four hundred fifty".