75855255857 has 4 divisors (see below), whose sum is σ = 75858188400. Its totient is φ = 75852323316.

The previous prime is 75855255829. The next prime is 75855255893.

75855255857 is nontrivially palindromic in base 10.

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 75855255857 - 2²² = 75851061553 is a prime.

It is a super-2 number, since 2×75855255857² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75855255857.

It is not an unprimeable number, because it can be changed into a prime (74855255857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427123 + ... + 1479320.

It is an arithmetic number, because the mean of its divisors is an integer number (18964547100).

Almost surely, 2^75855255857 is an apocalyptic number.

It is an amenable number.

75855255857 is a deficient number, since it is larger than the sum of its proper divisors (2932543).

75855255857 is a wasteful number, since it uses less digits than its factorization.

75855255857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932542.

The product of its digits is 98000000, while the sum is 62.

The spelling of 75855255857 in words is "seventy-five billion, eight hundred fifty-five million, two hundred fifty-five thousand, eight hundred fifty-seven".