20526530075 has 12 divisors (see below), whose sum is σ = 26073700968. Its totient is φ = 16020705600.

The previous prime is 20526530029. The next prime is 20526530077. The reversal of 20526530075 is 57003562502.

It is a de Polignac number, because none of the positive numbers 2^k-20526530075 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20526530077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10011917 + ... + 10013966.

It is an arithmetic number, because the mean of its divisors is an integer number (2172808414).

Almost surely, 2^20526530075 is an apocalyptic number.

20526530075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20526530075 is a deficient number, since it is larger than the sum of its proper divisors (5547170893).

20526530075 is a wasteful number, since it uses less digits than its factorization.

20526530075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025934 (or 20025929 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 20526530075 in words is "twenty billion, five hundred twenty-six million, five hundred thirty thousand, seventy-five".