56371445731 has 2 divisors, whose sum is σ = 56371445732. Its totient is φ = 56371445730.

The previous prime is 56371445717. The next prime is 56371445777. The reversal of 56371445731 is 13754417365.

It is a happy number.

It is an a-pointer prime, because the next prime (56371445777) can be obtained adding 56371445731 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56371445731 - 2⁹ = 56371445219 is a prime.

It is a super-2 number, since 2×56371445731² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56371445701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28185722865 + 28185722866.

It is an arithmetic number, because the mean of its divisors is an integer number (28185722866).

Almost surely, 2^56371445731 is an apocalyptic number.

56371445731 is a deficient number, since it is larger than the sum of its proper divisors (1).

56371445731 is an equidigital number, since it uses as much as digits as its factorization.

56371445731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1058400, while the sum is 46.

The spelling of 56371445731 in words is "fifty-six billion, three hundred seventy-one million, four hundred forty-five thousand, seven hundred thirty-one".