20552352653 has 12 divisors (see below), whose sum is σ = 23998807392. Its totient is φ = 17241474360.

The previous prime is 20552352647. The next prime is 20552352661. The reversal of 20552352653 is 35625325502.

It is not a de Polignac number, because 20552352653 - 2⁴ = 20552352637 is a prime.

It is a super-3 number, since 3×20552352653³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552352053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649103 + ... + 680028.

It is an arithmetic number, because the mean of its divisors is an integer number (1999900616).

Almost surely, 2^20552352653 is an apocalyptic number.

It is an amenable number.

20552352653 is a deficient number, since it is larger than the sum of its proper divisors (3446454739).

20552352653 is an equidigital number, since it uses as much as digits as its factorization.

20552352653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329232 (or 1329185 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 20552352653 in words is "twenty billion, five hundred fifty-two million, three hundred fifty-two thousand, six hundred fifty-three".