52545400421 has 8 divisors (see below), whose sum is σ = 55996579584. Its totient is φ = 49191437680.

The previous prime is 52545400393. The next prime is 52545400459. The reversal of 52545400421 is 12400454525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52545400421 - 2¹⁴ = 52545384037 is a prime.

It is a super-3 number, since 3×52545400421³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52545400471) 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, 24302990 + ... + 24305151.

It is an arithmetic number, because the mean of its divisors is an integer number (6999572448).

Almost surely, 2^52545400421 is an apocalyptic number.

It is an amenable number.

52545400421 is a deficient number, since it is larger than the sum of its proper divisors (3451179163).

52545400421 is a wasteful number, since it uses less digits than its factorization.

52545400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48608211.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 52545400421 its reverse (12400454525), we get a palindrome (64945854946).

The spelling of 52545400421 in words is "fifty-two billion, five hundred forty-five million, four hundred thousand, four hundred twenty-one".