75455538507 has 12 divisors (see below), whose sum is σ = 109018251160. Its totient is φ = 50291268768.

The previous prime is 75455538497. The next prime is 75455538541. The reversal of 75455538507 is 70583555457.

75455538507 is a `hidden beast` number, since 7 + 5 + 4 + 5 + 553 + 85 + 0 + 7 = 666.

It is not a de Polignac number, because 75455538507 - 2⁶ = 75455538443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75455538307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996757 + ... + 1069782.

Almost surely, 2^75455538507 is an apocalyptic number.

75455538507 is a deficient number, since it is larger than the sum of its proper divisors (33562712653).

75455538507 is a wasteful number, since it uses less digits than its factorization.

75455538507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070602 (or 2070599 counting only the distinct ones).

The product of its (nonzero) digits is 14700000, while the sum is 54.

The spelling of 75455538507 in words is "seventy-five billion, four hundred fifty-five million, five hundred thirty-eight thousand, five hundred seven".