653225191 has 2 divisors, whose sum is σ = 653225192. Its totient is φ = 653225190.

The previous prime is 653225117. The next prime is 653225213. The reversal of 653225191 is 191522356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653225191 - 2¹¹ = 653223143 is a prime.

It is equal to p_33952345 and since 653225191 and 33952345 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653225891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326612595 + 326612596.

It is an arithmetic number, because the mean of its divisors is an integer number (326612596).

Almost surely, 2^653225191 is an apocalyptic number.

653225191 is a deficient number, since it is larger than the sum of its proper divisors (1).

653225191 is an equidigital number, since it uses as much as digits as its factorization.

653225191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 34.

The square root of 653225191 is about 25558.2705009553. The cubic root of 653225191 is about 867.6694532871.

The spelling of 653225191 in words is "six hundred fifty-three million, two hundred twenty-five thousand, one hundred ninety-one".