20525054455423 has 8 divisors (see below), whose sum is σ = 23484386101248. Its totient is φ = 17572518061944.

The previous prime is 20525054455417. The next prime is 20525054455457. The reversal of 20525054455423 is 32455445052502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20525054455423 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 (20525054455483) 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, 1698806611 + ... + 1698818692.

It is an arithmetic number, because the mean of its divisors is an integer number (2935548262656).

Almost surely, 2^{20525054455423} is an apocalyptic number.

20525054455423 is a deficient number, since it is larger than the sum of its proper divisors (2959331645825).

20525054455423 is an equidigital number, since it uses as much as digits as its factorization.

20525054455423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397626173.

The product of its (nonzero) digits is 4800000, while the sum is 46.

The spelling of 20525054455423 in words is "twenty trillion, five hundred twenty-five billion, fifty-four million, four hundred fifty-five thousand, four hundred twenty-three".