52606729 has 4 divisors (see below), whose sum is σ = 60121984. Its totient is φ = 45091476.

The previous prime is 52606717. The next prime is 52606747. The reversal of 52606729 is 92760625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52606729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52606429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3757617 + ... + 3757630.

It is an arithmetic number, because the mean of its divisors is an integer number (15030496).

Almost surely, 2^52606729 is an apocalyptic number.

It is an amenable number.

52606729 is a deficient number, since it is larger than the sum of its proper divisors (7515255).

52606729 is an equidigital number, since it uses as much as digits as its factorization.

52606729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515254.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 52606729 is about 7253.0496344641. The cubic root of 52606729 is about 374.6971872480.

It can be divided in two parts, 52606 and 729, that added together give a palindrome (53335).

The spelling of 52606729 in words is "fifty-two million, six hundred six thousand, seven hundred twenty-nine".