20235053 has 6 divisors (see below), whose sum is σ = 20587374. Its totient is φ = 19888664.

The previous prime is 20235043. The next prime is 20235077. The reversal of 20235053 is 35053202.

It can be written as a sum of positive squares in only one way, i.e., 18550249 + 1684804 = 4307^2 + 1298^2 .

It is not a de Polignac number, because 20235053 - 2⁶ = 20234989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235013) 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, 575 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (3431229).

Almost surely, 2^20235053 is an apocalyptic number.

It is an amenable number.

20235053 is a deficient number, since it is larger than the sum of its proper divisors (352321).

20235053 is an frugal number, since it uses more digits than its factorization.

20235053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931 (or 5872 counting only the distinct ones).

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

The square root of 20235053 is about 4498.3389156443. The cubic root of 20235053 is about 272.5010094511.

Adding to 20235053 its reverse (35053202), we get a palindrome (55288255).

The spelling of 20235053 in words is "twenty million, two hundred thirty-five thousand, fifty-three".