853255260581 has 4 divisors (see below), whose sum is σ = 865990413792. Its totient is φ = 840520107372.

The previous prime is 853255260547. The next prime is 853255260601. The reversal of 853255260581 is 185062552358.

853255260581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 853255260581 - 2³⁸ = 578377353637 is a prime.

It is a super-2 number, since 2×853255260581² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853255260511) 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, 6367576505 + ... + 6367576638.

It is an arithmetic number, because the mean of its divisors is an integer number (216497603448).

Almost surely, 2^853255260581 is an apocalyptic number.

It is an amenable number.

853255260581 is a deficient number, since it is larger than the sum of its proper divisors (12735153211).

853255260581 is a wasteful number, since it uses less digits than its factorization.

853255260581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12735153210.

The product of its (nonzero) digits is 2880000, while the sum is 50.

The spelling of 853255260581 in words is "eight hundred fifty-three billion, two hundred fifty-five million, two hundred sixty thousand, five hundred eighty-one".