75000001 has 4 divisors (see below), whose sum is σ = 76119472. Its totient is φ = 73880532.

The previous prime is 74999959. The next prime is 75000007. The reversal of 75000001 is 10000057.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10000057 = 79 ⋅126583.

It is a cyclic number.

It is not a de Polignac number, because 75000001 - 2⁹ = 74999489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559635 + ... + 559768.

It is an arithmetic number, because the mean of its divisors is an integer number (19029868).

Almost surely, 2^75000001 is an apocalyptic number.

It is an amenable number.

75000001 is a deficient number, since it is larger than the sum of its proper divisors (1119471).

75000001 is a wasteful number, since it uses less digits than its factorization.

75000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119470.

The product of its (nonzero) digits is 35, while the sum is 13.

The square root of 75000001 is about 8660.2540955794. The cubic root of 75000001 is about 421.7163345252.

Adding to 75000001 its reverse (10000057), we get a palindrome (85000058).

The spelling of 75000001 in words is "seventy-five million, one", and thus it is an aban number and an uban number.