52391099 has 2 divisors, whose sum is σ = 52391100. Its totient is φ = 52391098.

The previous prime is 52391077. The next prime is 52391107. The reversal of 52391099 is 99019325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52391099 - 2²⁴ = 35613883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (52391029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26195549 + 26195550.

It is an arithmetic number, because the mean of its divisors is an integer number (26195550).

Almost surely, 2^52391099 is an apocalyptic number.

52391099 is a deficient number, since it is larger than the sum of its proper divisors (1).

52391099 is an equidigital number, since it uses as much as digits as its factorization.

52391099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 52391099 is about 7238.1695890605. The cubic root of 52391099 is about 374.1845367453.

The spelling of 52391099 in words is "fifty-two million, three hundred ninety-one thousand, ninety-nine".