75447475 has 12 divisors (see below), whose sum is σ = 97623216. Its totient is φ = 57733280.

The previous prime is 75447469. The next prime is 75447509. The reversal of 75447475 is 57474457.

It is not a de Polignac number, because 75447475 - 2⁵ = 75447443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65032 + ... + 66181.

It is an arithmetic number, because the mean of its divisors is an integer number (8135268).

Almost surely, 2^75447475 is an apocalyptic number.

75447475 is a deficient number, since it is larger than the sum of its proper divisors (22175741).

75447475 is a wasteful number, since it uses less digits than its factorization.

75447475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131246 (or 131241 counting only the distinct ones).

The product of its digits is 548800, while the sum is 43.

The square root of 75447475 is about 8686.0505985171. The cubic root of 75447475 is about 422.5533702406.

The spelling of 75447475 in words is "seventy-five million, four hundred forty-seven thousand, four hundred seventy-five".