252601561477585 has 4 divisors (see below), whose sum is σ = 303121873773108. Its totient is φ = 202081249182064.

The previous prime is 252601561477567. The next prime is 252601561477591. The reversal of 252601561477585 is 585774165106252.

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 44906309281089 + 207695252196496 = 6701217^2 + 14411636^2 .

It is a cyclic number.

It is not a de Polignac number, because 252601561477585 - 2¹³ = 252601561469393 is a prime.

It is a Duffinian 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, 25260156147754 + ... + 25260156147763.

It is an arithmetic number, because the mean of its divisors is an integer number (75780468443277).

Almost surely, 2^{252601561477585} is an apocalyptic number.

It is an amenable number.

252601561477585 is a deficient number, since it is larger than the sum of its proper divisors (50520312295523).

252601561477585 is an equidigital number, since it uses as much as digits as its factorization.

252601561477585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50520312295522.

The product of its (nonzero) digits is 141120000, while the sum is 64.

The spelling of 252601561477585 in words is "two hundred fifty-two trillion, six hundred one billion, five hundred sixty-one million, four hundred seventy-seven thousand, five hundred eighty-five".