75285733 has 12 divisors (see below), whose sum is σ = 81171840. Its totient is φ = 69632136.

The previous prime is 75285719. The next prime is 75285757. The reversal of 75285733 is 33758257.

It is a de Polignac number, because none of the positive numbers 2^k-75285733 is a prime.

It is a Duffinian number.

Its product of digits (176400) is a multiple of the sum of its prime divisors (2205).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75285533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34060 + ... + 36202.

It is an arithmetic number, because the mean of its divisors is an integer number (6764320).

Almost surely, 2^75285733 is an apocalyptic number.

It is an amenable number.

75285733 is a deficient number, since it is larger than the sum of its proper divisors (5886107).

75285733 is a wasteful number, since it uses less digits than its factorization.

75285733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2205 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 75285733 is about 8676.7351578805. The cubic root of 75285733 is about 422.2512018608.

The spelling of 75285733 in words is "seventy-five million, two hundred eighty-five thousand, seven hundred thirty-three".