5266913921 has 2 divisors, whose sum is σ = 5266913922. Its totient is φ = 5266913920.

The previous prime is 5266913917. The next prime is 5266913933. The reversal of 5266913921 is 1293196625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5088824896 + 178089025 = 71336^2 + 13345^2 .

It is a cyclic number.

It is not a de Polignac number, because 5266913921 - 2² = 5266913917 is a prime.

It is not a weakly prime, because it can be changed into another prime (5266913941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2633456960 + 2633456961.

It is an arithmetic number, because the mean of its divisors is an integer number (2633456961).

Almost surely, 2^5266913921 is an apocalyptic number.

It is an amenable number.

5266913921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5266913921 is an equidigital number, since it uses as much as digits as its factorization.

5266913921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 5266913921 is about 72573.5070187462. The cubic root of 5266913921 is about 1739.8777737062.

The spelling of 5266913921 in words is "five billion, two hundred sixty-six million, nine hundred thirteen thousand, nine hundred twenty-one".