85552297 has 2 divisors, whose sum is σ = 85552298. Its totient is φ = 85552296.

The previous prime is 85552237. The next prime is 85552303. The reversal of 85552297 is 79225558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78428736 + 7123561 = 8856^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 85552297 - 2⁷ = 85552169 is a prime.

It is not a weakly prime, because it can be changed into another prime (85552217) 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, 42776148 + 42776149.

It is an arithmetic number, because the mean of its divisors is an integer number (42776149).

Almost surely, 2^85552297 is an apocalyptic number.

It is an amenable number.

85552297 is a deficient number, since it is larger than the sum of its proper divisors (1).

85552297 is an equidigital number, since it uses as much as digits as its factorization.

85552297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 43.

The square root of 85552297 is about 9249.4484700440. The cubic root of 85552297 is about 440.6332084851.

It can be divided in two parts, 85552 and 297, that added together give a square (85849 = 293²).

The spelling of 85552297 in words is "eighty-five million, five hundred fifty-two thousand, two hundred ninety-seven".