52099321 has 2 divisors, whose sum is σ = 52099322. Its totient is φ = 52099320.

The previous prime is 52099309. The next prime is 52099331. The reversal of 52099321 is 12399025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36772096 + 15327225 = 6064^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 52099321 - 2¹¹ = 52097273 is a prime.

It is a super-2 number, since 2×52099321² = 5428678497322082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52099331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26049660 + 26049661.

It is an arithmetic number, because the mean of its divisors is an integer number (26049661).

Almost surely, 2^52099321 is an apocalyptic number.

It is an amenable number.

52099321 is a deficient number, since it is larger than the sum of its proper divisors (1).

52099321 is an equidigital number, since it uses as much as digits as its factorization.

52099321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 52099321 is about 7217.9859379192. The cubic root of 52099321 is about 373.4886034800.

The spelling of 52099321 in words is "fifty-two million, ninety-nine thousand, three hundred twenty-one".