53544202421 has 8 divisors (see below), whose sum is σ = 53631569664. Its totient is φ = 53456895520.

The previous prime is 53544202399. The next prime is 53544202433. The reversal of 53544202421 is 12420244535.

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 53544202421 - 2²⁶ = 53477093557 is a prime.

It is a super-2 number, since 2×53544202421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53544102421) 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, 1968806 + ... + 1995816.

It is an arithmetic number, because the mean of its divisors is an integer number (6703946208).

Almost surely, 2^53544202421 is an apocalyptic number.

It is an amenable number.

53544202421 is a deficient number, since it is larger than the sum of its proper divisors (87367243).

53544202421 is a wasteful number, since it uses less digits than its factorization.

53544202421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30171.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 53544202421 its reverse (12420244535), we get a palindrome (65964446956).

The spelling of 53544202421 in words is "fifty-three billion, five hundred forty-four million, two hundred two thousand, four hundred twenty-one".