97255757 has 2 divisors, whose sum is σ = 97255758. Its totient is φ = 97255756.

The previous prime is 97255751. The next prime is 97255811. The reversal of 97255757 is 75755279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83521321 + 13734436 = 9139^2 + 3706^2 .

It is a cyclic number.

It is not a de Polignac number, because 97255757 - 2¹⁶ = 97190221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97255751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48627878 + 48627879.

It is an arithmetic number, because the mean of its divisors is an integer number (48627879).

Almost surely, 2^97255757 is an apocalyptic number.

It is an amenable number.

97255757 is a deficient number, since it is larger than the sum of its proper divisors (1).

97255757 is an equidigital number, since it uses as much as digits as its factorization.

97255757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 771750, while the sum is 47.

The square root of 97255757 is about 9861.8333488252. The cubic root of 97255757 is about 459.8735585056.

The spelling of 97255757 in words is "ninety-seven million, two hundred fifty-five thousand, seven hundred fifty-seven".