252040049999 has 2 divisors, whose sum is σ = 252040050000. Its totient is φ = 252040049998.

The previous prime is 252040049977. The next prime is 252040050043. The reversal of 252040049999 is 999940040252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252040049999 - 2¹² = 252040045903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252040049999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252040049959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126020024999 + 126020025000.

It is an arithmetic number, because the mean of its divisors is an integer number (126020025000).

Almost surely, 2^252040049999 is an apocalyptic number.

252040049999 is a deficient number, since it is larger than the sum of its proper divisors (1).

252040049999 is an equidigital number, since it uses as much as digits as its factorization.

252040049999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 252040049999 in words is "two hundred fifty-two billion, forty million, forty-nine thousand, nine hundred ninety-nine".