20512525443 has 8 divisors (see below), whose sum is σ = 27353644800. Its totient is φ = 13673211528.

The previous prime is 20512525441. The next prime is 20512525447. The reversal of 20512525443 is 34452521502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20512525443 - 2¹ = 20512525441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20512525441) 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, 424623 + ... + 470456.

It is an arithmetic number, because the mean of its divisors is an integer number (3419205600).

Almost surely, 2^20512525443 is an apocalyptic number.

20512525443 is a deficient number, since it is larger than the sum of its proper divisors (6841119357).

20512525443 is an equidigital number, since it uses as much as digits as its factorization.

20512525443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902721.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 20512525443 in words is "twenty billion, five hundred twelve million, five hundred twenty-five thousand, four hundred forty-three".