252213326450 has 18 divisors (see below), whose sum is σ = 469123392429. Its totient is φ = 100883910120.

The previous prime is 252213326413. The next prime is 252213326473. The reversal of 252213326450 is 54623312252.

252213326450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 247169059921 + 5044266529 = 497161^2 + 71023^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=355115.

It is a super-2 number, since 2×252213326450² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252213326450.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3515639 + ... + 3586661.

Almost surely, 2^252213326450 is an apocalyptic number.

252213326450 is a deficient number, since it is larger than the sum of its proper divisors (216910065979).

252213326450 is an frugal number, since it uses more digits than its factorization.

252213326450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142058 (or 71030 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 252213326450 in words is "two hundred fifty-two billion, two hundred thirteen million, three hundred twenty-six thousand, four hundred fifty".