75545254557 has 16 divisors (see below), whose sum is σ = 112537239360. Its totient is φ = 50085248400.

The previous prime is 75545254553. The next prime is 75545254559.

75545254557 is a `hidden beast` number, since 7 + 5 + 5 + 45 + 2 + 545 + 57 = 666.

75545254557 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75545254557 - 2² = 75545254553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75545254553) 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, 7724319 + ... + 7734092.

It is an arithmetic number, because the mean of its divisors is an integer number (7033577460).

Almost surely, 2^75545254557 is an apocalyptic number.

It is an amenable number.

75545254557 is a deficient number, since it is larger than the sum of its proper divisors (36991984803).

75545254557 is a wasteful number, since it uses less digits than its factorization.

75545254557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15458601 (or 15458595 counting only the distinct ones).

The product of its digits is 24500000, while the sum is 54.

The spelling of 75545254557 in words is "seventy-five billion, five hundred forty-five million, two hundred fifty-four thousand, five hundred fifty-seven".