52091899 has 2 divisors, whose sum is σ = 52091900. Its totient is φ = 52091898.

The previous prime is 52091887. The next prime is 52091929. The reversal of 52091899 is 99819025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52091899 - 2¹⁵ = 52059131 is a prime.

It is not a weakly prime, because it can be changed into another prime (52091399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26045949 + 26045950.

It is an arithmetic number, because the mean of its divisors is an integer number (26045950).

Almost surely, 2^52091899 is an apocalyptic number.

52091899 is a deficient number, since it is larger than the sum of its proper divisors (1).

52091899 is an equidigital number, since it uses as much as digits as its factorization.

52091899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 52091899 is about 7217.4717872673. The cubic root of 52091899 is about 373.4708670745.

The spelling of 52091899 in words is "fifty-two million, ninety-one thousand, eight hundred ninety-nine".