75550201 has 4 divisors (see below), whose sum is σ = 75586212. Its totient is φ = 75514192.

The previous prime is 75550199. The next prime is 75550207. The reversal of 75550201 is 10205557.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10205557 = 1787 ⋅5711.

It can be written as a sum of positive squares in 2 ways, for example, as 52940176 + 22610025 = 7276^2 + 4755^2 .

It is a cyclic number.

It is not a de Polignac number, because 75550201 - 2¹ = 75550199 is a prime.

It is a super-2 number, since 2×75550201² = 11415665742280802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75550207) 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, 14650 + ... + 19123.

It is an arithmetic number, because the mean of its divisors is an integer number (18896553).

Almost surely, 2^75550201 is an apocalyptic number.

It is an amenable number.

75550201 is a deficient number, since it is larger than the sum of its proper divisors (36011).

75550201 is a wasteful number, since it uses less digits than its factorization.

75550201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36010.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 75550201 is about 8691.9618613982. The cubic root of 75550201 is about 422.7450600307.

Adding to 75550201 its reverse (10205557), we get a palindrome (85755758).

The spelling of 75550201 in words is "seventy-five million, five hundred fifty thousand, two hundred one".