20553725200517 has 8 divisors (see below), whose sum is σ = 20707501284000. Its totient is φ = 20400160205584.

The previous prime is 20553725200513. The next prime is 20553725200531. The reversal of 20553725200517 is 71500252735502.

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 20553725200517 - 2² = 20553725200513 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 (20553725200513) 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, 52576667 + ... + 52966152.

It is an arithmetic number, because the mean of its divisors is an integer number (2588437660500).

Almost surely, 2^{20553725200517} is an apocalyptic number.

It is an amenable number.

20553725200517 is a deficient number, since it is larger than the sum of its proper divisors (153776083483).

20553725200517 is a wasteful number, since it uses less digits than its factorization.

20553725200517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105544275.

The product of its (nonzero) digits is 735000, while the sum is 44.

The spelling of 20553725200517 in words is "twenty trillion, five hundred fifty-three billion, seven hundred twenty-five million, two hundred thousand, five hundred seventeen".