56342647 has 2 divisors, whose sum is σ = 56342648. Its totient is φ = 56342646.

The previous prime is 56342639. The next prime is 56342653. The reversal of 56342647 is 74624365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56342647 - 2³ = 56342639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56342147) 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, 28171323 + 28171324.

It is an arithmetic number, because the mean of its divisors is an integer number (28171324).

Almost surely, 2^56342647 is an apocalyptic number.

56342647 is a deficient number, since it is larger than the sum of its proper divisors (1).

56342647 is an equidigital number, since it uses as much as digits as its factorization.

56342647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 37.

The square root of 56342647 is about 7506.1739255096. The cubic root of 56342647 is about 383.3649601295.

It can be divided in two parts, 5634 and 2647, that added together give a square (8281 = 91²).

The spelling of 56342647 in words is "fifty-six million, three hundred forty-two thousand, six hundred forty-seven".