252053211505 has 16 divisors (see below), whose sum is σ = 309952818000. Its totient is φ = 196653475840.

The previous prime is 252053211461. The next prime is 252053211511. The reversal of 252053211505 is 505112350252.

It can be written as a sum of positive squares in 8 ways, for example, as 41713569121 + 210339642384 = 204239^2 + 458628^2 .

It is not a de Polignac number, because 252053211505 - 2¹⁵ = 252053178737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351321 + ... + 792169.

It is an arithmetic number, because the mean of its divisors is an integer number (19372051125).

Almost surely, 2^252053211505 is an apocalyptic number.

It is an amenable number.

252053211505 is a deficient number, since it is larger than the sum of its proper divisors (57899606495).

252053211505 is a wasteful number, since it uses less digits than its factorization.

252053211505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443684.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 252053211505 its reverse (505112350252), we get a palindrome (757165561757).

The spelling of 252053211505 in words is "two hundred fifty-two billion, fifty-three million, two hundred eleven thousand, five hundred five".