75545054557 has 16 divisors (see below), whose sum is σ = 90889091200. Its totient is φ = 61339576320.

The previous prime is 75545054449. The next prime is 75545054567.

It is a happy number.

75545054557 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 75545054557 - 2²⁷ = 75410836829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75545054567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513257 + ... + 2543137.

It is an arithmetic number, because the mean of its divisors is an integer number (5680568200).

Almost surely, 2^75545054557 is an apocalyptic number.

It is an amenable number.

75545054557 is a deficient number, since it is larger than the sum of its proper divisors (15344036643).

75545054557 is a wasteful number, since it uses less digits than its factorization.

75545054557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48916.

The product of its (nonzero) digits is 12250000, while the sum is 52.

The spelling of 75545054557 in words is "seventy-five billion, five hundred forty-five million, fifty-four thousand, five hundred fifty-seven".