252215421352 has 16 divisors (see below), whose sum is σ = 500721792660. Its totient is φ = 118689609984.

The previous prime is 252215421343. The next prime is 252215421373. The reversal of 252215421352 is 253124512252.

It can be written as a sum of positive squares in 2 ways, for example, as 209476474596 + 42738946756 = 457686^2 + 206734^2 .

It is a super-2 number, since 2×252215421352² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927262443 + ... + 927262714.

Almost surely, 2^252215421352 is an apocalyptic number.

It is an amenable number.

252215421352 is a deficient number, since it is larger than the sum of its proper divisors (248506371308).

252215421352 is a wasteful number, since it uses less digits than its factorization.

252215421352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854525180 (or 1854525176 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The spelling of 252215421352 in words is "two hundred fifty-two billion, two hundred fifteen million, four hundred twenty-one thousand, three hundred fifty-two".