75750001 has 8 divisors (see below), whose sum is σ = 80274600. Its totient is φ = 71352960.

The previous prime is 75749987. The next prime is 75750023. The reversal of 75750001 is 10005757.

It can be written as a sum of positive squares in 4 ways, for example, as 1100401 + 74649600 = 1049^2 + 8640^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75750001 - 2⁵ = 75749969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75750061) 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 7 ways as a sum of consecutive naturals, for example, 30666 + ... + 33043.

It is an arithmetic number, because the mean of its divisors is an integer number (10034325).

Almost surely, 2^75750001 is an apocalyptic number.

It is an amenable number.

75750001 is a deficient number, since it is larger than the sum of its proper divisors (4524599).

75750001 is a wasteful number, since it uses less digits than its factorization.

75750001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63779.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 75750001 is about 8703.4476502131. The cubic root of 75750001 is about 423.1173957442.

Adding to 75750001 its reverse (10005757), we get a palindrome (85755758).

The spelling of 75750001 in words is "seventy-five million, seven hundred fifty thousand, one".