53544423421 has 8 divisors (see below), whose sum is σ = 53600673600. Its totient is φ = 53488206720.

The previous prime is 53544423377. The next prime is 53544423529. The reversal of 53544423421 is 12432444535.

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 53544423421 - 2⁷ = 53544423293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53544423221) 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, 4236850 + ... + 4249468.

It is an arithmetic number, because the mean of its divisors is an integer number (6700084200).

Almost surely, 2^53544423421 is an apocalyptic number.

It is an amenable number.

53544423421 is a deficient number, since it is larger than the sum of its proper divisors (56250179).

53544423421 is a wasteful number, since it uses less digits than its factorization.

53544423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16739.

The product of its digits is 230400, while the sum is 37.

Adding to 53544423421 its reverse (12432444535), we get a palindrome (65976867956).

The spelling of 53544423421 in words is "fifty-three billion, five hundred forty-four million, four hundred twenty-three thousand, four hundred twenty-one".