75224272 has 20 divisors (see below), whose sum is σ = 145883520. Its totient is φ = 37576928.

The previous prime is 75224263. The next prime is 75224339. The reversal of 75224272 is 27242257.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27879 + ... + 30457.

It is an arithmetic number, because the mean of its divisors is an integer number (7294176).

Almost surely, 2^75224272 is an apocalyptic number.

It is an amenable number.

75224272 is a deficient number, since it is larger than the sum of its proper divisors (70659248).

75224272 is a wasteful number, since it uses less digits than its factorization.

75224272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410 (or 4404 counting only the distinct ones).

The product of its digits is 15680, while the sum is 31.

The square root of 75224272 is about 8673.1927224062. The cubic root of 75224272 is about 422.1362661998.

The spelling of 75224272 in words is "seventy-five million, two hundred twenty-four thousand, two hundred seventy-two".