56532729 has 16 divisors (see below), whose sum is σ = 82399680. Its totient is φ = 34191360.

The previous prime is 56532719. The next prime is 56532757. The reversal of 56532729 is 92723565.

It is not a de Polignac number, because 56532729 - 2⁷ = 56532601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56532709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17557 + ... + 20525.

It is an arithmetic number, because the mean of its divisors is an integer number (5149980).

Almost surely, 2^56532729 is an apocalyptic number.

It is an amenable number.

56532729 is a deficient number, since it is larger than the sum of its proper divisors (25866951).

56532729 is a wasteful number, since it uses less digits than its factorization.

56532729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

The product of its digits is 113400, while the sum is 39.

The square root of 56532729 is about 7518.8249746885. The cubic root of 56532729 is about 383.7955929801.

The spelling of 56532729 in words is "fifty-six million, five hundred thirty-two thousand, seven hundred twenty-nine".