75500243 has 24 divisors (see below), whose sum is σ = 98380800. Its totient is φ = 56575584.

The previous prime is 75500233. The next prime is 75500251. The reversal of 75500243 is 34200557.

It is a de Polignac number, because none of the positive numbers 2^k-75500243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75500233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20798 + ... + 24156.

It is an arithmetic number, because the mean of its divisors is an integer number (4099200).

Almost surely, 2^75500243 is an apocalyptic number.

75500243 is a deficient number, since it is larger than the sum of its proper divisors (22880557).

75500243 is a wasteful number, since it uses less digits than its factorization.

75500243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411 (or 3398 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 75500243 is about 8689.0875815588. The cubic root of 75500243 is about 422.6518586261.

The spelling of 75500243 in words is "seventy-five million, five hundred thousand, two hundred forty-three".