52640329 has 8 divisors (see below), whose sum is σ = 61440768. Its totient is φ = 44160000.

The previous prime is 52640327. The next prime is 52640363. The reversal of 52640329 is 92304625.

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 52640329 - 2¹ = 52640327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52640329.

It is not an unprimeable number, because it can be changed into a prime (52640327) 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, 79672 + ... + 80329.

It is an arithmetic number, because the mean of its divisors is an integer number (7680096).

Almost surely, 2^52640329 is an apocalyptic number.

It is an amenable number.

52640329 is a deficient number, since it is larger than the sum of its proper divisors (8800439).

52640329 is a wasteful number, since it uses less digits than its factorization.

52640329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160055.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 52640329 is about 7255.3655317978. The cubic root of 52640329 is about 374.7769434966.

The spelling of 52640329 in words is "fifty-two million, six hundred forty thousand, three hundred twenty-nine".