52015142321 has 8 divisors (see below), whose sum is σ = 54300836544. Its totient is φ = 49731462000.

The previous prime is 52015142299. The next prime is 52015142341. The reversal of 52015142321 is 12324151025.

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 52015142321 - 2²⁶ = 51948033457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52015142341) 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, 450566 + ... + 554111.

It is an arithmetic number, because the mean of its divisors is an integer number (6787604568).

Almost surely, 2^52015142321 is an apocalyptic number.

It is an amenable number.

52015142321 is a deficient number, since it is larger than the sum of its proper divisors (2285694223).

52015142321 is a wasteful number, since it uses less digits than its factorization.

52015142321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006951.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 52015142321 its reverse (12324151025), we get a palindrome (64339293346).

The spelling of 52015142321 in words is "fifty-two billion, fifteen million, one hundred forty-two thousand, three hundred twenty-one".