252782564321 has 16 divisors (see below), whose sum is σ = 299408778240. Its totient is φ = 208812582720.

The previous prime is 252782564213. The next prime is 252782564369. The reversal of 252782564321 is 123465287252.

It is not a de Polignac number, because 252782564321 - 2³⁴ = 235602695137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252782564381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041041 + ... + 1260686.

It is an arithmetic number, because the mean of its divisors is an integer number (18713048640).

Almost surely, 2^252782564321 is an apocalyptic number.

It is an amenable number.

252782564321 is a deficient number, since it is larger than the sum of its proper divisors (46626213919).

252782564321 is a wasteful number, since it uses less digits than its factorization.

252782564321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302304.

The product of its digits is 1612800, while the sum is 47.

The spelling of 252782564321 in words is "two hundred fifty-two billion, seven hundred eighty-two million, five hundred sixty-four thousand, three hundred twenty-one".