2520605993 has 2 divisors, whose sum is σ = 2520605994. Its totient is φ = 2520605992.

The previous prime is 2520605921. The next prime is 2520606017. The reversal of 2520605993 is 3995060252.

2520605993 is digitally balanced in base 2, 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., 2378805529 + 141800464 = 48773^2 + 11908^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520605993 - 2¹⁰ = 2520604969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2520605993.

It is not a weakly prime, because it can be changed into another prime (2520605693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260302996 + 1260302997.

It is an arithmetic number, because the mean of its divisors is an integer number (1260302997).

Almost surely, 2^2520605993 is an apocalyptic number.

It is an amenable number.

2520605993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520605993 is an equidigital number, since it uses as much as digits as its factorization.

2520605993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 2520605993 is about 50205.6370639792. The cubic root of 2520605993 is about 1360.9274946650.

The spelling of 2520605993 in words is "two billion, five hundred twenty million, six hundred five thousand, nine hundred ninety-three".