5366515421 has 2 divisors, whose sum is σ = 5366515422. Its totient is φ = 5366515420.

The previous prime is 5366515391. The next prime is 5366515433. The reversal of 5366515421 is 1245156635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5186016196 + 180499225 = 72014^2 + 13435^2 .

It is a cyclic number.

It is not a de Polignac number, because 5366515421 - 2¹⁴ = 5366499037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5366515621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2683257710 + 2683257711.

It is an arithmetic number, because the mean of its divisors is an integer number (2683257711).

Almost surely, 2^5366515421 is an apocalyptic number.

It is an amenable number.

5366515421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5366515421 is an equidigital number, since it uses as much as digits as its factorization.

5366515421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 38.

The square root of 5366515421 is about 73256.5042914279. The cubic root of 5366515421 is about 1750.7768437800.

The spelling of 5366515421 in words is "five billion, three hundred sixty-six million, five hundred fifteen thousand, four hundred twenty-one".