255613061085 has 32 divisors (see below), whose sum is σ = 419106400128. Its totient is φ = 132981538560.

The previous prime is 255613061083. The next prime is 255613061131. The reversal of 255613061085 is 580160316552.

It is a happy number.

It is not a de Polignac number, because 255613061085 - 2¹ = 255613061083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255613061083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 791731 + ... + 1066800.

It is an arithmetic number, because the mean of its divisors is an integer number (13097075004).

Almost surely, 2^255613061085 is an apocalyptic number.

It is an amenable number.

255613061085 is a deficient number, since it is larger than the sum of its proper divisors (163493339043).

255613061085 is a wasteful number, since it uses less digits than its factorization.

255613061085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858765.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 255613061085 in words is "two hundred fifty-five billion, six hundred thirteen million, sixty-one thousand, eighty-five".