53044729 has 4 divisors (see below), whose sum is σ = 53131876. Its totient is φ = 52957584.

The previous prime is 53044723. The next prime is 53044769. The reversal of 53044729 is 92744035.

53044729 = T₇₀ + T₇₁ + ... + T₆₈₂.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 511225 + 52533504 = 715^2 + 7248^2 .

It is a cyclic number.

It is not a de Polignac number, because 53044729 - 2⁵ = 53044697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53044694 and 53044703.

It is not an unprimeable number, because it can be changed into a prime (53044723) 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, 42654 + ... + 43879.

It is an arithmetic number, because the mean of its divisors is an integer number (13282969).

Almost surely, 2^53044729 is an apocalyptic number.

It is an amenable number.

53044729 is a deficient number, since it is larger than the sum of its proper divisors (87147).

53044729 is an equidigital number, since it uses as much as digits as its factorization.

53044729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87146.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 53044729 is about 7283.1812417377. The cubic root of 53044729 is about 375.7342154615.

The spelling of 53044729 in words is "fifty-three million, forty-four thousand, seven hundred twenty-nine".