20259496073 has 4 divisors (see below), whose sum is σ = 21325785360. Its totient is φ = 19193206788.

The previous prime is 20259496067. The next prime is 20259496097. The reversal of 20259496073 is 37069495202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20259496073 - 2²² = 20255301769 is a prime.

It is a super-2 number, since 2×20259496073² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20259496013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533144615 + ... + 533144652.

It is an arithmetic number, because the mean of its divisors is an integer number (5331446340).

Almost surely, 2^20259496073 is an apocalyptic number.

It is an amenable number.

20259496073 is a deficient number, since it is larger than the sum of its proper divisors (1066289287).

20259496073 is a wasteful number, since it uses less digits than its factorization.

20259496073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066289286.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 20259496073 in words is "twenty billion, two hundred fifty-nine million, four hundred ninety-six thousand, seventy-three".