75053921273 has 2 divisors, whose sum is σ = 75053921274. Its totient is φ = 75053921272.

The previous prime is 75053921251. The next prime is 75053921291. The reversal of 75053921273 is 37212935057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73607488249 + 1446433024 = 271307^2 + 38032^2 .

It is an emirp because it is prime and its reverse (37212935057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75053921273 - 2⁸ = 75053921017 is a prime.

It is not a weakly prime, because it can be changed into another prime (75053921233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37526960636 + 37526960637.

It is an arithmetic number, because the mean of its divisors is an integer number (37526960637).

Almost surely, 2^75053921273 is an apocalyptic number.

It is an amenable number.

75053921273 is a deficient number, since it is larger than the sum of its proper divisors (1).

75053921273 is an equidigital number, since it uses as much as digits as its factorization.

75053921273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 44.

The spelling of 75053921273 in words is "seventy-five billion, fifty-three million, nine hundred twenty-one thousand, two hundred seventy-three".