75225151 has 4 divisors (see below), whose sum is σ = 75915400. Its totient is φ = 74534904.

The previous prime is 75225097. The next prime is 75225169. The reversal of 75225151 is 15152257.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15152257 = 149 ⋅101693.

It is a cyclic number.

It is not a de Polignac number, because 75225151 - 2⁷ = 75225023 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 (75225191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344961 + ... + 345178.

It is an arithmetic number, because the mean of its divisors is an integer number (18978850).

Almost surely, 2^75225151 is an apocalyptic number.

75225151 is a deficient number, since it is larger than the sum of its proper divisors (690249).

75225151 is a wasteful number, since it uses less digits than its factorization.

75225151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690248.

The product of its digits is 3500, while the sum is 28.

The square root of 75225151 is about 8673.2433956393. The cubic root of 75225151 is about 422.1379104224.

The spelling of 75225151 in words is "seventy-five million, two hundred twenty-five thousand, one hundred fifty-one".