20258305593 has 16 divisors (see below), whose sum is σ = 27852310080. Its totient is φ = 13091059904.

The previous prime is 20258305589. The next prime is 20258305603. The reversal of 20258305593 is 39550385202.

It is a cyclic number.

It is not a de Polignac number, because 20258305593 - 2² = 20258305589 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20258305553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754338 + ... + 780731.

It is an arithmetic number, because the mean of its divisors is an integer number (1740769380).

Almost surely, 2^20258305593 is an apocalyptic number.

It is an amenable number.

20258305593 is a deficient number, since it is larger than the sum of its proper divisors (7594004487).

20258305593 is a wasteful number, since it uses less digits than its factorization.

20258305593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535208.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 20258305593 in words is "twenty billion, two hundred fifty-eight million, three hundred five thousand, five hundred ninety-three".