53551200303221 has 8 divisors (see below), whose sum is σ = 54429324168600. Its totient is φ = 52673084029440.

The previous prime is 53551200303199. The next prime is 53551200303229. The reversal of 53551200303221 is 12230300215535.

It can be written as a sum of positive squares in 4 ways, for example, as 19141596262321 + 34409604040900 = 4375111^2 + 5865970^2 .

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 53551200303221 - 2¹⁸ = 53551200041077 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 (53551200303229) 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, 13317785 + ... + 16866113.

It is an arithmetic number, because the mean of its divisors is an integer number (6803665521075).

Almost surely, 2^{53551200303221} is an apocalyptic number.

It is an amenable number.

53551200303221 is a deficient number, since it is larger than the sum of its proper divisors (878123865379).

53551200303221 is a wasteful number, since it uses less digits than its factorization.

53551200303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795799.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 53551200303221 its reverse (12230300215535), we get a palindrome (65781500518756).

The spelling of 53551200303221 in words is "fifty-three trillion, five hundred fifty-one billion, two hundred million, three hundred three thousand, two hundred twenty-one".