5509729 has 8 divisors (see below), whose sum is σ = 5610528. Its totient is φ = 5410080.

The previous prime is 5509711. The next prime is 5509741. The reversal of 5509729 is 9279055.

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

It is a cyclic number.

It is not a de Polignac number, because 5509729 - 2¹³ = 5501537 is a prime.

It is a super-2 number, since 2×5509729² = 60714227306882, which contains 22 as substring.

It is a Duffinian number.

5509729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5509709) 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, 17794 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (701316).

Almost surely, 2^5509729 is an apocalyptic number.

It is an amenable number.

5509729 is a deficient number, since it is larger than the sum of its proper divisors (100799).

5509729 is a wasteful number, since it uses less digits than its factorization.

5509729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 5509729 is about 2347.2811932106. The cubic root of 5509729 is about 176.6214365443.

The spelling of 5509729 in words is "five million, five hundred nine thousand, seven hundred twenty-nine".