252319999 has 2 divisors, whose sum is σ = 252320000. Its totient is φ = 252319998.

The previous prime is 252319993. The next prime is 252320023. The reversal of 252319999 is 999913252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252319999 - 2¹⁷ = 252188927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252319993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126159999 + 126160000.

It is an arithmetic number, because the mean of its divisors is an integer number (126160000).

Almost surely, 2^252319999 is an apocalyptic number.

252319999 is a deficient number, since it is larger than the sum of its proper divisors (1).

252319999 is an equidigital number, since it uses as much as digits as its factorization.

252319999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 49.

The square root of 252319999 is about 15884.5836898548. The cubic root of 252319999 is about 631.9032049791.

It can be divided in two parts, 2523 and 19999, that added together give a palindrome (22522).

The spelling of 252319999 in words is "two hundred fifty-two million, three hundred nineteen thousand, nine hundred ninety-nine".