75216001 has 4 divisors (see below), whose sum is σ = 85961152. Its totient is φ = 64470852.

The previous prime is 75215993. The next prime is 75216047. The reversal of 75216001 is 10061257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75216001 - 2³ = 75215993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75216101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5372565 + ... + 5372578.

It is an arithmetic number, because the mean of its divisors is an integer number (21490288).

Almost surely, 2^75216001 is an apocalyptic number.

It is an amenable number.

75216001 is a deficient number, since it is larger than the sum of its proper divisors (10745151).

75216001 is a wasteful number, since it uses less digits than its factorization.

75216001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10745150.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 75216001 is about 8672.7158952660. The cubic root of 75216001 is about 422.1207941678.

Adding to 75216001 its reverse (10061257), we get a palindrome (85277258).

The spelling of 75216001 in words is "seventy-five million, two hundred sixteen thousand, one".