252475520585 has 4 divisors (see below), whose sum is σ = 302970624708. Its totient is φ = 201980416464.

The previous prime is 252475520573. The next prime is 252475520593. The reversal of 252475520585 is 585025574252.

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 50855662144 + 201619858441 = 225512^2 + 449021^2 .

It is a cyclic number.

It is not a de Polignac number, because 252475520585 - 2⁸ = 252475520329 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 25247552054 + ... + 25247552063.

It is an arithmetic number, because the mean of its divisors is an integer number (75742656177).

Almost surely, 2^252475520585 is an apocalyptic number.

It is an amenable number.

252475520585 is a deficient number, since it is larger than the sum of its proper divisors (50495104123).

252475520585 is an equidigital number, since it uses as much as digits as its factorization.

252475520585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50495104122.

The product of its (nonzero) digits is 5600000, while the sum is 50.

The spelling of 252475520585 in words is "two hundred fifty-two billion, four hundred seventy-five million, five hundred twenty thousand, five hundred eighty-five".