252297771065 has 4 divisors (see below), whose sum is σ = 302757325284. Its totient is φ = 201838216848.

The previous prime is 252297771017. The next prime is 252297771067. The reversal of 252297771065 is 560177792252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163121477689 + 89176293376 = 403883^2 + 298624^2 .

It is a cyclic number.

It is not a de Polignac number, because 252297771065 - 2¹⁰ = 252297770041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252297770998 and 252297771016.

It is not an unprimeable number, because it can be changed into a prime (252297771067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25229777102 + ... + 25229777111.

It is an arithmetic number, because the mean of its divisors is an integer number (75689331321).

Almost surely, 2^252297771065 is an apocalyptic number.

It is an amenable number.

252297771065 is a deficient number, since it is larger than the sum of its proper divisors (50459554219).

252297771065 is an equidigital number, since it uses as much as digits as its factorization.

252297771065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50459554218.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 252297771065 in words is "two hundred fifty-two billion, two hundred ninety-seven million, seven hundred seventy-one thousand, sixty-five".