56451731467 has 2 divisors, whose sum is σ = 56451731468. Its totient is φ = 56451731466.

The previous prime is 56451731447. The next prime is 56451731473. The reversal of 56451731467 is 76413715465.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56451731467 - 2⁷ = 56451731339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56451731467.

It is not a weakly prime, because it can be changed into another prime (56451731417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28225865733 + 28225865734.

It is an arithmetic number, because the mean of its divisors is an integer number (28225865734).

Almost surely, 2^56451731467 is an apocalyptic number.

56451731467 is a deficient number, since it is larger than the sum of its proper divisors (1).

56451731467 is an equidigital number, since it uses as much as digits as its factorization.

56451731467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 49.

It can be divided in two parts, 564517 and 31467, that added together give a square (595984 = 772²).

The spelling of 56451731467 in words is "fifty-six billion, four hundred fifty-one million, seven hundred thirty-one thousand, four hundred sixty-seven".