63770257 has 2 divisors, whose sum is σ = 63770258. Its totient is φ = 63770256.

The previous prime is 63770249. The next prime is 63770269. The reversal of 63770257 is 75207736.

63770257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53523856 + 10246401 = 7316^2 + 3201^2 .

It is a cyclic number.

It is not a de Polignac number, because 63770257 - 2³ = 63770249 is a prime.

It is not a weakly prime, because it can be changed into another prime (63770207) 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, 31885128 + 31885129.

It is an arithmetic number, because the mean of its divisors is an integer number (31885129).

Almost surely, 2^63770257 is an apocalyptic number.

It is an amenable number.

63770257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63770257 is an equidigital number, since it uses as much as digits as its factorization.

63770257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 63770257 is about 7985.6281531261. The cubic root of 63770257 is about 399.5207948854.

The spelling of 63770257 in words is "sixty-three million, seven hundred seventy thousand, two hundred fifty-seven".