75578261055 has 32 divisors (see below), whose sum is σ = 132203473920. Its totient is φ = 36564823680.

The previous prime is 75578261041. The next prime is 75578261081. The reversal of 75578261055 is 55016287557.

It is not a de Polignac number, because 75578261055 - 2²⁰ = 75577212479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75578260989 and 75578261007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 418260 + ... + 571049.

It is an arithmetic number, because the mean of its divisors is an integer number (4131358560).

Almost surely, 2^75578261055 is an apocalyptic number.

75578261055 is a deficient number, since it is larger than the sum of its proper divisors (56625212865).

75578261055 is a wasteful number, since it uses less digits than its factorization.

75578261055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989791.

The product of its (nonzero) digits is 2940000, while the sum is 51.

It can be divided in two parts, 75578 and 261055, that added together give a palindrome (336633).

The spelling of 75578261055 in words is "seventy-five billion, five hundred seventy-eight million, two hundred sixty-one thousand, fifty-five".