20235205053 has 64 divisors (see below), whose sum is σ = 35018314240. Its totient is φ = 11309414400.

The previous prime is 20235205027. The next prime is 20235205063. The reversal of 20235205053 is 35050253202.

20235205053 is a `hidden beast` number, since 20 + 23 + 520 + 50 + 53 = 666.

It is not a de Polignac number, because 20235205053 - 2¹⁷ = 20235073981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235205063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2081901 + ... + 2091597.

It is an arithmetic number, because the mean of its divisors is an integer number (547161160).

Almost surely, 2^20235205053 is an apocalyptic number.

It is an amenable number.

20235205053 is a deficient number, since it is larger than the sum of its proper divisors (14783109187).

20235205053 is a wasteful number, since it uses less digits than its factorization.

20235205053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955 (or 9949 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

Adding to 20235205053 its reverse (35050253202), we get a palindrome (55285458255).

The spelling of 20235205053 in words is "twenty billion, two hundred thirty-five million, two hundred five thousand, fifty-three".