210252519049 has 2 divisors, whose sum is σ = 210252519050. Its totient is φ = 210252519048.

The previous prime is 210252519041. The next prime is 210252519053. The reversal of 210252519049 is 940915252012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196054128400 + 14198390649 = 442780^2 + 119157^2 .

It is a cyclic number.

It is not a de Polignac number, because 210252519049 - 2³ = 210252519041 is a prime.

It is a super-2 number, since 2×210252519049² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210252519041) 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, 105126259524 + 105126259525.

It is an arithmetic number, because the mean of its divisors is an integer number (105126259525).

Almost surely, 2^210252519049 is an apocalyptic number.

It is an amenable number.

210252519049 is a deficient number, since it is larger than the sum of its proper divisors (1).

210252519049 is an equidigital number, since it uses as much as digits as its factorization.

210252519049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 210252519049 in words is "two hundred ten billion, two hundred fifty-two million, five hundred nineteen thousand, forty-nine".