63258491 has 2 divisors, whose sum is σ = 63258492. Its totient is φ = 63258490.

The previous prime is 63258463. The next prime is 63258497. The reversal of 63258491 is 19485236.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63258491 - 2⁶ = 63258427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63258497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31629245 + 31629246.

It is an arithmetic number, because the mean of its divisors is an integer number (31629246).

Almost surely, 2^63258491 is an apocalyptic number.

63258491 is a deficient number, since it is larger than the sum of its proper divisors (1).

63258491 is an equidigital number, since it uses as much as digits as its factorization.

63258491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 63258491 is about 7953.5206669751. The cubic root of 63258491 is about 398.4491847841.

The spelling of 63258491 in words is "sixty-three million, two hundred fifty-eight thousand, four hundred ninety-one".