20548062517 has 8 divisors (see below), whose sum is σ = 21594194336. Its totient is φ = 19527761232.

The previous prime is 20548062511. The next prime is 20548062551. The reversal of 20548062517 is 71526084502.

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 20548062517 - 2¹¹ = 20548060469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20548062517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548062511) 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, 6456003 + ... + 6459184.

It is an arithmetic number, because the mean of its divisors is an integer number (2699274292).

Almost surely, 2^20548062517 is an apocalyptic number.

It is an amenable number.

20548062517 is a deficient number, since it is larger than the sum of its proper divisors (1046131819).

20548062517 is a wasteful number, since it uses less digits than its factorization.

20548062517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12915267.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20548062517 in words is "twenty billion, five hundred forty-eight million, sixty-two thousand, five hundred seventeen".