5260921921 has 2 divisors, whose sum is σ = 5260921922. Its totient is φ = 5260921920.

The previous prime is 5260921843. The next prime is 5260921933. The reversal of 5260921921 is 1291290625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2979522225 + 2281399696 = 54585^2 + 47764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5260921921 - 2²⁹ = 4724051009 is a prime.

It is not a weakly prime, because it can be changed into another prime (5260921121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630460960 + 2630460961.

It is an arithmetic number, because the mean of its divisors is an integer number (2630460961).

Almost surely, 2^5260921921 is an apocalyptic number.

It is an amenable number.

5260921921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5260921921 is an equidigital number, since it uses as much as digits as its factorization.

5260921921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 5260921921 is about 72532.2129884371. The cubic root of 5260921921 is about 1739.2177221842.

The spelling of 5260921921 in words is "five billion, two hundred sixty million, nine hundred twenty-one thousand, nine hundred twenty-one".