52690189309 has 2 divisors, whose sum is σ = 52690189310. Its totient is φ = 52690189308.

The previous prime is 52690189303. The next prime is 52690189313. The reversal of 52690189309 is 90398109625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34713279225 + 17976910084 = 186315^2 + 134078^2 .

It is a cyclic number.

It is not a de Polignac number, because 52690189309 - 2²¹ = 52688092157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52690189303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26345094654 + 26345094655.

It is an arithmetic number, because the mean of its divisors is an integer number (26345094655).

Almost surely, 2^52690189309 is an apocalyptic number.

It is an amenable number.

52690189309 is a deficient number, since it is larger than the sum of its proper divisors (1).

52690189309 is an equidigital number, since it uses as much as digits as its factorization.

52690189309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 52690189309 in words is "fifty-two billion, six hundred ninety million, one hundred eighty-nine thousand, three hundred nine".