654452056631 has 2 divisors, whose sum is σ = 654452056632. Its totient is φ = 654452056630.

The previous prime is 654452056597. The next prime is 654452056637. The reversal of 654452056631 is 136650254456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654452056631 is a prime.

It is a super-2 number, since 2×654452056631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654452056637) 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, 327226028315 + 327226028316.

It is an arithmetic number, because the mean of its divisors is an integer number (327226028316).

Almost surely, 2^654452056631 is an apocalyptic number.

654452056631 is a deficient number, since it is larger than the sum of its proper divisors (1).

654452056631 is an equidigital number, since it uses as much as digits as its factorization.

654452056631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 654452056631 in words is "six hundred fifty-four billion, four hundred fifty-two million, fifty-six thousand, six hundred thirty-one".