63411251 has 2 divisors, whose sum is σ = 63411252. Its totient is φ = 63411250.

The previous prime is 63411239. The next prime is 63411259. The reversal of 63411251 is 15211436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63411251 - 2¹⁰ = 63410227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (63411259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31705625 + 31705626.

It is an arithmetic number, because the mean of its divisors is an integer number (31705626).

Almost surely, 2^63411251 is an apocalyptic number.

63411251 is a deficient number, since it is larger than the sum of its proper divisors (1).

63411251 is an equidigital number, since it uses as much as digits as its factorization.

63411251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 63411251 is about 7963.1181706666. The cubic root of 63411251 is about 398.7696591166.

Adding to 63411251 its reverse (15211436), we get a palindrome (78622687).

The spelling of 63411251 in words is "sixty-three million, four hundred eleven thousand, two hundred fifty-one".