75005052491 has 2 divisors, whose sum is σ = 75005052492. Its totient is φ = 75005052490.

The previous prime is 75005052481. The next prime is 75005052523. The reversal of 75005052491 is 19425050057.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75005052491 - 2¹⁴ = 75005036107 is a prime.

It is not a weakly prime, because it can be changed into another prime (75005052461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37502526245 + 37502526246.

It is an arithmetic number, because the mean of its divisors is an integer number (37502526246).

Almost surely, 2^75005052491 is an apocalyptic number.

75005052491 is a deficient number, since it is larger than the sum of its proper divisors (1).

75005052491 is an equidigital number, since it uses as much as digits as its factorization.

75005052491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 75005052491 in words is "seventy-five billion, five million, fifty-two thousand, four hundred ninety-one".