56731151 has 2 divisors, whose sum is σ = 56731152. Its totient is φ = 56731150.

The previous prime is 56731141. The next prime is 56731177. The reversal of 56731151 is 15113765.

56731151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56731151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56731141) 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, 28365575 + 28365576.

It is an arithmetic number, because the mean of its divisors is an integer number (28365576).

Almost surely, 2^56731151 is an apocalyptic number.

56731151 is a deficient number, since it is larger than the sum of its proper divisors (1).

56731151 is an equidigital number, since it uses as much as digits as its factorization.

56731151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 29.

The square root of 56731151 is about 7532.0084306910. The cubic root of 56731151 is about 384.2440916803.

The spelling of 56731151 in words is "fifty-six million, seven hundred thirty-one thousand, one hundred fifty-one".