75050855872021 has 4 divisors (see below), whose sum is σ = 75439720410412. Its totient is φ = 74661991333632.

The previous prime is 75050855872009. The next prime is 75050855872033. The reversal of 75050855872021 is 12027855805057.

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

It is an interprime number because it is at equal distance from previous prime (75050855872009) and next prime (75050855872033).

It can be written as a sum of positive squares in 2 ways, for example, as 5927345328996 + 69123510543025 = 2434614^2 + 8314055^2 .

It is a cyclic number.

It is not a de Polignac number, because 75050855872021 - 2⁵ = 75050855871989 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 (75050855882021) 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 3 ways as a sum of consecutive naturals, for example, 194432268906 + ... + 194432269291.

It is an arithmetic number, because the mean of its divisors is an integer number (18859930102603).

Almost surely, 2^{75050855872021} is an apocalyptic number.

It is an amenable number.

75050855872021 is a deficient number, since it is larger than the sum of its proper divisors (388864538391).

75050855872021 is a wasteful number, since it uses less digits than its factorization.

75050855872021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388864538390.

The product of its (nonzero) digits is 7840000, while the sum is 55.

The spelling of 75050855872021 in words is "seventy-five trillion, fifty billion, eight hundred fifty-five million, eight hundred seventy-two thousand, twenty-one".