4775755223521 has 2 divisors, whose sum is σ = 4775755223522. Its totient is φ = 4775755223520.

The previous prime is 4775755223431. The next prime is 4775755223527. The reversal of 4775755223521 is 1253225575774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4476038392225 + 299716831296 = 2115665^2 + 547464^2 .

It is a cyclic number.

It is not a de Polignac number, because 4775755223521 - 2¹⁵ = 4775755190753 is a prime.

It is not a weakly prime, because it can be changed into another prime (4775755223527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2387877611760 + 2387877611761.

It is an arithmetic number, because the mean of its divisors is an integer number (2387877611761).

Almost surely, 2^{4775755223521} is an apocalyptic number.

It is an amenable number.

4775755223521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4775755223521 is an equidigital number, since it uses as much as digits as its factorization.

4775755223521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20580000, while the sum is 55.

The spelling of 4775755223521 in words is "four trillion, seven hundred seventy-five billion, seven hundred fifty-five million, two hundred twenty-three thousand, five hundred twenty-one".