75304745531 has 2 divisors, whose sum is σ = 75304745532. Its totient is φ = 75304745530.

The previous prime is 75304745519. The next prime is 75304745599. The reversal of 75304745531 is 13554740357.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75304745531 - 2¹⁴ = 75304729147 is a prime.

It is a super-2 number, since 2×75304745531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75304745731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37652372765 + 37652372766.

It is an arithmetic number, because the mean of its divisors is an integer number (37652372766).

Almost surely, 2^75304745531 is an apocalyptic number.

75304745531 is a deficient number, since it is larger than the sum of its proper divisors (1).

75304745531 is an equidigital number, since it uses as much as digits as its factorization.

75304745531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 75304745531 in words is "seventy-five billion, three hundred four million, seven hundred forty-five thousand, five hundred thirty-one".