255852860761 has 3 divisors (see below), whose sum is σ = 255853366581. Its totient is φ = 255852354942.

The previous prime is 255852860713. The next prime is 255852860827. The reversal of 255852860761 is 167068258552.

The square root of 255852860761 is 505819.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 255852860761 - 2³⁷ = 118413907289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255852860701) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 252910 + ... + 758728.

It is an arithmetic number, because the mean of its divisors is an integer number (85284455527).

Almost surely, 2^255852860761 is an apocalyptic number.

255852860761 is the 505819-th square number.

255852860761 is the 252910-th centered octagonal number.

It is an amenable number.

255852860761 is a deficient number, since it is larger than the sum of its proper divisors (505820).

255852860761 is an frugal number, since it uses more digits than its factorization.

255852860761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011638 (or 505819 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 255852860761 in words is "two hundred fifty-five billion, eight hundred fifty-two million, eight hundred sixty thousand, seven hundred sixty-one".