63365257 has 2 divisors, whose sum is σ = 63365258. Its totient is φ = 63365256.

The previous prime is 63365251. The next prime is 63365287. The reversal of 63365257 is 75256336.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 1207801 = 7884^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 63365257 - 2¹⁹ = 62840969 is a prime.

It is not a weakly prime, because it can be changed into another prime (63365251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31682628 + 31682629.

It is an arithmetic number, because the mean of its divisors is an integer number (31682629).

Almost surely, 2^63365257 is an apocalyptic number.

It is an amenable number.

63365257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63365257 is an equidigital number, since it uses as much as digits as its factorization.

63365257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 37.

The square root of 63365257 is about 7960.2297077409. The cubic root of 63365257 is about 398.6732227712.

The spelling of 63365257 in words is "sixty-three million, three hundred sixty-five thousand, two hundred fifty-seven".