56349729 has 8 divisors (see below), whose sum is σ = 83481120. Its totient is φ = 37566468.

The previous prime is 56349721. The next prime is 56349749. The reversal of 56349729 is 92794365.

It is a happy number.

56349729 is a `hidden beast` number, since 5 + 634 + 9 + 7 + 2 + 9 = 666.

56349729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56349729 - 2³ = 56349721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56349721) 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 in 7 ways as a sum of consecutive naturals, for example, 1043487 + ... + 1043540.

It is an arithmetic number, because the mean of its divisors is an integer number (10435140).

Almost surely, 2^56349729 is an apocalyptic number.

It is an amenable number.

56349729 is a deficient number, since it is larger than the sum of its proper divisors (27131391).

56349729 is a wasteful number, since it uses less digits than its factorization.

56349729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087036 (or 2087030 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 56349729 is about 7506.6456556840. The cubic root of 56349729 is about 383.3810218344.

The spelling of 56349729 in words is "fifty-six million, three hundred forty-nine thousand, seven hundred twenty-nine".