53652729 has 16 divisors (see below), whose sum is σ = 78193472. Its totient is φ = 32522688.

The previous prime is 53652727. The next prime is 53652757. The reversal of 53652729 is 92725635.

It is not a de Polignac number, because 53652729 - 2¹ = 53652727 is a prime.

It is a super-3 number, since 3×53652729³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53652727) 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, 7654 + ... + 12879.

It is an arithmetic number, because the mean of its divisors is an integer number (4887092).

Almost surely, 2^53652729 is an apocalyptic number.

It is an amenable number.

53652729 is a deficient number, since it is larger than the sum of its proper divisors (24540743).

53652729 is a wasteful number, since it uses less digits than its factorization.

53652729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616.

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

The square root of 53652729 is about 7324.8023181517. The cubic root of 53652729 is about 377.1643236215.

The spelling of 53652729 in words is "fifty-three million, six hundred fifty-two thousand, seven hundred twenty-nine".