63205525451 has 2 divisors, whose sum is σ = 63205525452. Its totient is φ = 63205525450.

The previous prime is 63205525403. The next prime is 63205525477. The reversal of 63205525451 is 15452550236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63205525451 - 2⁶ = 63205525387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (63205545451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31602762725 + 31602762726.

It is an arithmetic number, because the mean of its divisors is an integer number (31602762726).

Almost surely, 2^63205525451 is an apocalyptic number.

63205525451 is a deficient number, since it is larger than the sum of its proper divisors (1).

63205525451 is an equidigital number, since it uses as much as digits as its factorization.

63205525451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 63205525451 in words is "sixty-three billion, two hundred five million, five hundred twenty-five thousand, four hundred fifty-one".