52659729 has 24 divisors (see below), whose sum is σ = 77500800. Its totient is φ = 34450848.

The previous prime is 52659713. The next prime is 52659743. The reversal of 52659729 is 92795625.

52659729 is a `hidden beast` number, since 52 + 6 + 597 + 2 + 9 = 666.

It is not a de Polignac number, because 52659729 - 2⁴ = 52659713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52659749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143304 + ... + 143670.

It is an arithmetic number, because the mean of its divisors is an integer number (3229200).

Almost surely, 2^52659729 is an apocalyptic number.

It is an amenable number.

52659729 is a deficient number, since it is larger than the sum of its proper divisors (24841071).

52659729 is a wasteful number, since it uses less digits than its factorization.

52659729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 626 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 52659729 is about 7256.7023502415. The cubic root of 52659729 is about 374.8229777815.

The spelling of 52659729 in words is "fifty-two million, six hundred fifty-nine thousand, seven hundred twenty-nine".