245556097 has 2 divisors, whose sum is σ = 245556098. Its totient is φ = 245556096.

The previous prime is 245556037. The next prime is 245556131. The reversal of 245556097 is 790655542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225270081 + 20286016 = 15009^2 + 4504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245556097 is a prime.

It is not a weakly prime, because it can be changed into another prime (245556037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122778048 + 122778049.

It is an arithmetic number, because the mean of its divisors is an integer number (122778049).

Almost surely, 2^245556097 is an apocalyptic number.

It is an amenable number.

245556097 is a deficient number, since it is larger than the sum of its proper divisors (1).

245556097 is an equidigital number, since it uses as much as digits as its factorization.

245556097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 245556097 is about 15670.2296409466. The cubic root of 245556097 is about 626.2055426121.

The spelling of 245556097 in words is "two hundred forty-five million, five hundred fifty-six thousand, ninety-seven".