75355855357 has 4 divisors (see below), whose sum is σ = 75835829116. Its totient is φ = 74875881600.

The previous prime is 75355855339. The next prime is 75355855469.

75355855357 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39217465156 + 36138390201 = 198034^2 + 190101^2 .

It is a cyclic number.

It is not a de Polignac number, because 75355855357 - 2²³ = 75347466749 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 (75355855657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239986644 + ... + 239986957.

It is an arithmetic number, because the mean of its divisors is an integer number (18958957279).

Almost surely, 2^75355855357 is an apocalyptic number.

It is an amenable number.

75355855357 is a deficient number, since it is larger than the sum of its proper divisors (479973759).

75355855357 is a wasteful number, since it uses less digits than its factorization.

75355855357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479973758.

The product of its digits is 55125000, while the sum is 58.

The spelling of 75355855357 in words is "seventy-five billion, three hundred fifty-five million, eight hundred fifty-five thousand, three hundred fifty-seven".