75225197 has 2 divisors, whose sum is σ = 75225198. Its totient is φ = 75225196.

The previous prime is 75225191. The next prime is 75225211. The reversal of 75225197 is 79152257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 20967241 = 7366^2 + 4579^2 .

It is an emirp because it is prime and its reverse (79152257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75225197 - 2¹⁴ = 75208813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75225197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75225191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37612598 + 37612599.

It is an arithmetic number, because the mean of its divisors is an integer number (37612599).

Almost surely, 2^75225197 is an apocalyptic number.

It is an amenable number.

75225197 is a deficient number, since it is larger than the sum of its proper divisors (1).

75225197 is an equidigital number, since it uses as much as digits as its factorization.

75225197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 38.

The square root of 75225197 is about 8673.2460474727. The cubic root of 75225197 is about 422.1379964678.

The spelling of 75225197 in words is "seventy-five million, two hundred twenty-five thousand, one hundred ninety-seven".