52004310312421 has 4 divisors (see below), whose sum is σ = 52315713368352. Its totient is φ = 51692907256492.

The previous prime is 52004310312397. The next prime is 52004310312491. The reversal of 52004310312421 is 12421301340025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52004310312421 - 2¹⁹ = 52004309788133 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 52004310312421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52004310312491) 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, 155701527715 + ... + 155701528048.

It is an arithmetic number, because the mean of its divisors is an integer number (13078928342088).

Almost surely, 2^{52004310312421} is an apocalyptic number.

It is an amenable number.

52004310312421 is a deficient number, since it is larger than the sum of its proper divisors (311403055931).

52004310312421 is a wasteful number, since it uses less digits than its factorization.

52004310312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311403055930.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 52004310312421 its reverse (12421301340025), we get a palindrome (64425611652446).

The spelling of 52004310312421 in words is "fifty-two trillion, four billion, three hundred ten million, three hundred twelve thousand, four hundred twenty-one".