75225747 has 16 divisors (see below), whose sum is σ = 103808000. Its totient is φ = 48405600.

The previous prime is 75225727. The next prime is 75225817. The reversal of 75225747 is 74752257.

It is not a de Polignac number, because 75225747 - 2¹¹ = 75223699 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75225727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45597 + ... + 47217.

It is an arithmetic number, because the mean of its divisors is an integer number (6488000).

Almost surely, 2^75225747 is an apocalyptic number.

75225747 is a deficient number, since it is larger than the sum of its proper divisors (28582253).

75225747 is a wasteful number, since it uses less digits than its factorization.

75225747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154.

The product of its digits is 137200, while the sum is 39.

The square root of 75225747 is about 8673.2777541135. The cubic root of 75225747 is about 422.1390252690.

The spelling of 75225747 in words is "seventy-five million, two hundred twenty-five thousand, seven hundred forty-seven".