75005456081 has 2 divisors, whose sum is σ = 75005456082. Its totient is φ = 75005456080.

The previous prime is 75005456063. The next prime is 75005456083. The reversal of 75005456081 is 18065450057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73527745600 + 1477710481 = 271160^2 + 38441^2 .

It is a cyclic number.

It is not a de Polignac number, because 75005456081 - 2¹⁴ = 75005439697 is a prime.

It is a super-2 number, since 2×75005456081² (a number of 23 digits) contains 22 as substring.

Together with 75005456083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75005456083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37502728040 + 37502728041.

It is an arithmetic number, because the mean of its divisors is an integer number (37502728041).

Almost surely, 2^75005456081 is an apocalyptic number.

It is an amenable number.

75005456081 is a deficient number, since it is larger than the sum of its proper divisors (1).

75005456081 is an equidigital number, since it uses as much as digits as its factorization.

75005456081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 75005456081 in words is "seventy-five billion, five million, four hundred fifty-six thousand, eighty-one".