75958000561 has 2 divisors, whose sum is σ = 75958000562. Its totient is φ = 75958000560.

The previous prime is 75958000553. The next prime is 75958000603. The reversal of 75958000561 is 16500085957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57674904336 + 18283096225 = 240156^2 + 135215^2 .

It is a cyclic number.

It is not a de Polignac number, because 75958000561 - 2³ = 75958000553 is a prime.

It is not a weakly prime, because it can be changed into another prime (75958000501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37979000280 + 37979000281.

It is an arithmetic number, because the mean of its divisors is an integer number (37979000281).

Almost surely, 2^75958000561 is an apocalyptic number.

75958000561 is the 159121-st hex number.

It is an amenable number.

75958000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

75958000561 is an equidigital number, since it uses as much as digits as its factorization.

75958000561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 46.

The spelling of 75958000561 in words is "seventy-five billion, nine hundred fifty-eight million, five hundred sixty-one", and thus it is an aban number.