75523201 has 4 divisors (see below), whose sum is σ = 81332692. Its totient is φ = 69713712.

The previous prime is 75523199. The next prime is 75523207. The reversal of 75523201 is 10232557.

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 27290176 + 48233025 = 5224^2 + 6945^2 .

It is a cyclic number.

It is not a de Polignac number, because 75523201 - 2¹ = 75523199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75523207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2904726 + ... + 2904751.

It is an arithmetic number, because the mean of its divisors is an integer number (20333173).

Almost surely, 2^75523201 is an apocalyptic number.

It is an amenable number.

75523201 is a deficient number, since it is larger than the sum of its proper divisors (5809491).

75523201 is a wasteful number, since it uses less digits than its factorization.

75523201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809490.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 75523201 is about 8690.4085634681. The cubic root of 75523201 is about 422.6946940645.

Adding to 75523201 its reverse (10232557), we get a palindrome (85755758).

The spelling of 75523201 in words is "seventy-five million, five hundred twenty-three thousand, two hundred one".