75225133 has 4 divisors (see below), whose sum is σ = 75243168. Its totient is φ = 75207100.

The previous prime is 75225097. The next prime is 75225169. The reversal of 75225133 is 33152257.

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: 33152257 = 5569 ⋅5953.

It is an interprime number because it is at equal distance from previous prime (75225097) and next prime (75225169).

It is a cyclic number.

It is not a de Polignac number, because 75225133 - 2⁹ = 75224621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75225233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810 + ... + 12292.

It is an arithmetic number, because the mean of its divisors is an integer number (18810792).

Almost surely, 2^75225133 is an apocalyptic number.

It is an amenable number.

75225133 is a deficient number, since it is larger than the sum of its proper divisors (18035).

75225133 is a wasteful number, since it uses less digits than its factorization.

75225133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18034.

The product of its digits is 6300, while the sum is 28.

The square root of 75225133 is about 8673.2423579651. The cubic root of 75225133 is about 422.1378767524.

The spelling of 75225133 in words is "seventy-five million, two hundred twenty-five thousand, one hundred thirty-three".