63340451 has 2 divisors, whose sum is σ = 63340452. Its totient is φ = 63340450.

The previous prime is 63340399. The next prime is 63340457. The reversal of 63340451 is 15404336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63340451 - 2¹⁰ = 63339427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63340451.

It is not a weakly prime, because it can be changed into another prime (63340457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31670225 + 31670226.

It is an arithmetic number, because the mean of its divisors is an integer number (31670226).

Almost surely, 2^63340451 is an apocalyptic number.

63340451 is a deficient number, since it is larger than the sum of its proper divisors (1).

63340451 is an equidigital number, since it uses as much as digits as its factorization.

63340451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 63340451 is about 7958.6714343539. The cubic root of 63340451 is about 398.6211922674.

Adding to 63340451 its reverse (15404336), we get a palindrome (78744787).

The spelling of 63340451 in words is "sixty-three million, three hundred forty thousand, four hundred fifty-one".