20425205551153 has 8 divisors (see below), whose sum is σ = 21996471663488. Its totient is φ = 18853953218064.

The previous prime is 20425205551133. The next prime is 20425205551181. The reversal of 20425205551153 is 35115550252402.

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-20425205551153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20425205551133) 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, 256875 + ... + 6396592.

It is an arithmetic number, because the mean of its divisors is an integer number (2749558957936).

Almost surely, 2^{20425205551153} is an apocalyptic number.

It is an amenable number.

20425205551153 is a deficient number, since it is larger than the sum of its proper divisors (1571266112335).

20425205551153 is a wasteful number, since it uses less digits than its factorization.

20425205551153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889623.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 20425205551153 in words is "twenty trillion, four hundred twenty-five billion, two hundred five million, five hundred fifty-one thousand, one hundred fifty-three".