56729239 has 8 divisors (see below), whose sum is σ = 66057120. Its totient is φ = 47707296.

The previous prime is 56729237. The next prime is 56729273. The reversal of 56729239 is 93292765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56729239 - 2¹ = 56729237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56729195 and 56729204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56729237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76084 + ... + 76825.

It is an arithmetic number, because the mean of its divisors is an integer number (8257140).

Almost surely, 2^56729239 is an apocalyptic number.

56729239 is a deficient number, since it is larger than the sum of its proper divisors (9327881).

56729239 is a wasteful number, since it uses less digits than its factorization.

56729239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152969.

The product of its digits is 204120, while the sum is 43.

The square root of 56729239 is about 7531.8815046441. The cubic root of 56729239 is about 384.2397749281.

The spelling of 56729239 in words is "fifty-six million, seven hundred twenty-nine thousand, two hundred thirty-nine".