75225191 has 2 divisors, whose sum is σ = 75225192. Its totient is φ = 75225190.

The previous prime is 75225169. The next prime is 75225197. The reversal of 75225191 is 19152257.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75225191 - 2²² = 71030887 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75225197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37612595 + 37612596.

It is an arithmetic number, because the mean of its divisors is an integer number (37612596).

Almost surely, 2^75225191 is an apocalyptic number.

75225191 is a deficient number, since it is larger than the sum of its proper divisors (1).

75225191 is an equidigital number, since it uses as much as digits as its factorization.

75225191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 32.

The square root of 75225191 is about 8673.2457015814. The cubic root of 75225191 is about 422.1379852445.

The spelling of 75225191 in words is "seventy-five million, two hundred twenty-five thousand, one hundred ninety-one".