75564724 has 12 divisors (see below), whose sum is σ = 132328000. Its totient is φ = 37756728.

The previous prime is 75564721. The next prime is 75564739. The reversal of 75564724 is 42746557.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75564721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1237 + ... + 12355.

Almost surely, 2^75564724 is an apocalyptic number.

It is an amenable number.

75564724 is a deficient number, since it is larger than the sum of its proper divisors (56763276).

75564724 is a wasteful number, since it uses less digits than its factorization.

75564724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12822 (or 12820 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The square root of 75564724 is about 8692.7972482970. The cubic root of 75564724 is about 422.7721463612.

The spelling of 75564724 in words is "seventy-five million, five hundred sixty-four thousand, seven hundred twenty-four".