75549094557 has 8 divisors (see below), whose sum is σ = 100938970176. Its totient is φ = 50262640992.

The previous prime is 75549094549. The next prime is 75549094571.

It is a happy number.

75549094557 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75549094557 - 2³ = 75549094549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75549094557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75549094507) 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 7 ways as a sum of consecutive naturals, for example, 25853808 + ... + 25856729.

It is an arithmetic number, because the mean of its divisors is an integer number (12617371272).

Almost surely, 2^75549094557 is an apocalyptic number.

It is an amenable number.

75549094557 is a deficient number, since it is larger than the sum of its proper divisors (25389875619).

75549094557 is a wasteful number, since it uses less digits than its factorization.

75549094557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51711027.

The product of its (nonzero) digits is 39690000, while the sum is 60.

The spelling of 75549094557 in words is "seventy-five billion, five hundred forty-nine million, ninety-four thousand, five hundred fifty-seven".