20292571417 has 4 divisors (see below), whose sum is σ = 20292857380. Its totient is φ = 20292285456.

The previous prime is 20292571391. The next prime is 20292571423. The reversal of 20292571417 is 71417529202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71417529202 = 2 ⋅35708764601.

It can be written as a sum of positive squares in 2 ways, for example, as 6440223001 + 13852348416 = 80251^2 + 117696^2 .

It is a cyclic number.

It is not a de Polignac number, because 20292571417 - 2¹⁵ = 20292538649 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 20292571417.

It is not an unprimeable number, because it can be changed into a prime (20292571427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53059 + ... + 208327.

It is an arithmetic number, because the mean of its divisors is an integer number (5073214345).

Almost surely, 2^20292571417 is an apocalyptic number.

It is an amenable number.

20292571417 is a deficient number, since it is larger than the sum of its proper divisors (285963).

20292571417 is a wasteful number, since it uses less digits than its factorization.

20292571417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285962.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 20292571417 in words is "twenty billion, two hundred ninety-two million, five hundred seventy-one thousand, four hundred seventeen".