9992000521 has 2 divisors, whose sum is σ = 9992000522. Its totient is φ = 9992000520.

The previous prime is 9992000477. The next prime is 9992000527. The reversal of 9992000521 is 1250002999.

9992000521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9533569600 + 458430921 = 97640^2 + 21411^2 .

It is a cyclic number.

It is not a de Polignac number, because 9992000521 - 2²⁷ = 9857782793 is a prime.

It is not a weakly prime, because it can be changed into another prime (9992000527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996000260 + 4996000261.

It is an arithmetic number, because the mean of its divisors is an integer number (4996000261).

Almost surely, 2^9992000521 is an apocalyptic number.

It is an amenable number.

9992000521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9992000521 is an equidigital number, since it uses as much as digits as its factorization.

9992000521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 9992000521 is about 99959.9946028410. The cubic root of 9992000521 is about 2153.8600582775.

The spelling of 9992000521 in words is "nine billion, nine hundred ninety-two million, five hundred twenty-one", and thus it is an aban number.