20053045 has 8 divisors (see below), whose sum is σ = 24302520. Its totient is φ = 15883200.

The previous prime is 20053043. The next prime is 20053091. The reversal of 20053045 is 54035002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11444689 + 8608356 = 3383^2 + 2934^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20053045 - 2¹ = 20053043 is a prime.

It is a super-2 number, since 2×20053045² = 804249227544050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19350 + ... + 20359.

It is an arithmetic number, because the mean of its divisors is an integer number (3037815).

Almost surely, 2^20053045 is an apocalyptic number.

It is an amenable number.

20053045 is a deficient number, since it is larger than the sum of its proper divisors (4249475).

20053045 is a wasteful number, since it uses less digits than its factorization.

20053045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39815.

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

The square root of 20053045 is about 4478.0626391331. The cubic root of 20053045 is about 271.6815269492.

Adding to 20053045 its reverse (54035002), we get a palindrome (74088047).

It can be divided in two parts, 2005 and 3045, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 20053045 in words is "twenty million, fifty-three thousand, forty-five".