52399519 has 2 divisors, whose sum is σ = 52399520. Its totient is φ = 52399518.

The previous prime is 52399489. The next prime is 52399531. The reversal of 52399519 is 91599325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52399519 - 2⁹ = 52399007 is a prime.

It is a super-2 number, since 2×52399519² = 5491419182862722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52390519) 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, 26199759 + 26199760.

It is an arithmetic number, because the mean of its divisors is an integer number (26199760).

Almost surely, 2^52399519 is an apocalyptic number.

52399519 is a deficient number, since it is larger than the sum of its proper divisors (1).

52399519 is an equidigital number, since it uses as much as digits as its factorization.

52399519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 43.

The square root of 52399519 is about 7238.7512044551. The cubic root of 52399519 is about 374.2045812763.

The spelling of 52399519 in words is "fifty-two million, three hundred ninety-nine thousand, five hundred nineteen".