52154312421 has 8 divisors (see below), whose sum is σ = 69549773184. Its totient is φ = 34764196640.

The previous prime is 52154312389. The next prime is 52154312429. The reversal of 52154312421 is 12421345125.

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 52154312421 - 2⁵ = 52154312389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52154312429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313421 + ... + 1352546.

It is an arithmetic number, because the mean of its divisors is an integer number (8693721648).

Almost surely, 2^52154312421 is an apocalyptic number.

It is an amenable number.

52154312421 is a deficient number, since it is larger than the sum of its proper divisors (17395460763).

52154312421 is a wasteful number, since it uses less digits than its factorization.

52154312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672491.

The product of its digits is 9600, while the sum is 30.

Adding to 52154312421 its reverse (12421345125), we get a palindrome (64575657546).

The spelling of 52154312421 in words is "fifty-two billion, one hundred fifty-four million, three hundred twelve thousand, four hundred twenty-one".