20925745053653 has 8 divisors (see below), whose sum is σ = 22828887487200. Its totient is φ = 19022736282480.

The previous prime is 20925745053623. The next prime is 20925745053673. The reversal of 20925745053653 is 35635054752902.

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

It is a cyclic number.

It is not a de Polignac number, because 20925745053653 - 2²⁶ = 20925677944789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20925745053623) 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, 33088103 + ... + 33714596.

It is an arithmetic number, because the mean of its divisors is an integer number (2853610935900).

Almost surely, 2^{20925745053653} is an apocalyptic number.

It is an amenable number.

20925745053653 is a deficient number, since it is larger than the sum of its proper divisors (1903142433547).

20925745053653 is a wasteful number, since it uses less digits than its factorization.

20925745053653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66831187.

The product of its (nonzero) digits is 34020000, while the sum is 56.

The spelling of 20925745053653 in words is "twenty trillion, nine hundred twenty-five billion, seven hundred forty-five million, fifty-three thousand, six hundred fifty-three".