196557253 has 2 divisors, whose sum is σ = 196557254. Its totient is φ = 196557252.

The previous prime is 196557227. The next prime is 196557271. The reversal of 196557253 is 352755691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117115684 + 79441569 = 10822^2 + 8913^2 .

It is a cyclic number.

It is not a de Polignac number, because 196557253 - 2¹³ = 196549061 is a prime.

It is equal to p_10898962 and since 196557253 and 10898962 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 (196557353) 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 as a sum of consecutive naturals, namely, 98278626 + 98278627.

It is an arithmetic number, because the mean of its divisors is an integer number (98278627).

Almost surely, 2^196557253 is an apocalyptic number.

It is an amenable number.

196557253 is a deficient number, since it is larger than the sum of its proper divisors (1).

196557253 is an equidigital number, since it uses as much as digits as its factorization.

196557253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 283500, while the sum is 43.

The square root of 196557253 is about 14019.8877670258. The cubic root of 196557253 is about 581.4285564198.

The spelling of 196557253 in words is "one hundred ninety-six million, five hundred fifty-seven thousand, two hundred fifty-three".