75014561 has 4 divisors (see below), whose sum is σ = 77601300. Its totient is φ = 72427824.

The previous prime is 75014551. The next prime is 75014579. The reversal of 75014561 is 16541057.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 61324561 = 3700^2 + 7831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75014561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 2586709 = 75014561 / (7 + 5 + 0 + 1 + 4 + 5 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75014501) 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, 1293326 + ... + 1293383.

It is an arithmetic number, because the mean of its divisors is an integer number (19400325).

Almost surely, 2^75014561 is an apocalyptic number.

It is an amenable number.

75014561 is a deficient number, since it is larger than the sum of its proper divisors (2586739).

75014561 is a wasteful number, since it uses less digits than its factorization.

75014561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586738.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 75014561 is about 8661.0946767715. The cubic root of 75014561 is about 421.7436224916.

The spelling of 75014561 in words is "seventy-five million, fourteen thousand, five hundred sixty-one".