2530917427921 has 2 divisors, whose sum is σ = 2530917427922. Its totient is φ = 2530917427920.

The previous prime is 2530917427879. The next prime is 2530917427931. The reversal of 2530917427921 is 1297247190352.

2530917427921 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., 2150519596225 + 380397831696 = 1466465^2 + 616764^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530917427921 - 2¹¹ = 2530917425873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530917427931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265458713960 + 1265458713961.

It is an arithmetic number, because the mean of its divisors is an integer number (1265458713961).

Almost surely, 2^{2530917427921} is an apocalyptic number.

It is an amenable number.

2530917427921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530917427921 is an equidigital number, since it uses as much as digits as its factorization.

2530917427921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 2530917427921 in words is "two trillion, five hundred thirty billion, nine hundred seventeen million, four hundred twenty-seven thousand, nine hundred twenty-one".