255536626601 has 4 divisors (see below), whose sum is σ = 255540202500. Its totient is φ = 255533050704.

The previous prime is 255536626591. The next prime is 255536626643. The reversal of 255536626601 is 106626635552.

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 134953369600 + 120583257001 = 367360^2 + 347251^2 .

It is a cyclic number.

It is not a de Polignac number, because 255536626601 - 2³⁰ = 254462884777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255536626901) 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, 1678526 + ... + 1824423.

It is an arithmetic number, because the mean of its divisors is an integer number (63885050625).

Almost surely, 2^255536626601 is an apocalyptic number.

It is an amenable number.

255536626601 is a deficient number, since it is larger than the sum of its proper divisors (3575899).

255536626601 is an equidigital number, since it uses as much as digits as its factorization.

255536626601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575898.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 255536626601 in words is "two hundred fifty-five billion, five hundred thirty-six million, six hundred twenty-six thousand, six hundred one".