20091032573 has 4 divisors (see below), whose sum is σ = 21148455360. Its totient is φ = 19033609788.

The previous prime is 20091032551. The next prime is 20091032581. The reversal of 20091032573 is 37523019002.

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 20091032573 - 2⁸ = 20091032317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20091034573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528711365 + ... + 528711402.

It is an arithmetic number, because the mean of its divisors is an integer number (5287113840).

Almost surely, 2^20091032573 is an apocalyptic number.

It is an amenable number.

20091032573 is a deficient number, since it is larger than the sum of its proper divisors (1057422787).

20091032573 is a wasteful number, since it uses less digits than its factorization.

20091032573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057422786.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 20091032573 in words is "twenty billion, ninety-one million, thirty-two thousand, five hundred seventy-three".