75055007775 has 24 divisors (see below), whose sum is σ = 135371942784. Its totient is φ = 36390306400.

The previous prime is 75055007749. The next prime is 75055007809. The reversal of 75055007775 is 57770055057.

It is not a de Polignac number, because 75055007775 - 2¹⁷ = 75054876703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45487059 + ... + 45488708.

It is an arithmetic number, because the mean of its divisors is an integer number (5640497616).

Almost surely, 2^75055007775 is an apocalyptic number.

75055007775 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

75055007775 is a deficient number, since it is larger than the sum of its proper divisors (60316935009).

75055007775 is a wasteful number, since it uses less digits than its factorization.

75055007775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90975791 (or 90975786 counting only the distinct ones).

The product of its (nonzero) digits is 1500625, while the sum is 48.

The spelling of 75055007775 in words is "seventy-five billion, fifty-five million, seven thousand, seven hundred seventy-five".