53450121033221 has 8 divisors (see below), whose sum is σ = 58423779381600. Its totient is φ = 48495555424240.

The previous prime is 53450121033209. The next prime is 53450121033293. The reversal of 53450121033221 is 12233012105435.

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 53450121033221 - 2¹⁸ = 53450120771077 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 (53450121035221) 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, 4773178991 + ... + 4773190188.

It is an arithmetic number, because the mean of its divisors is an integer number (7302972422700).

Almost surely, 2^{53450121033221} is an apocalyptic number.

It is an amenable number.

53450121033221 is a deficient number, since it is larger than the sum of its proper divisors (4973658348379).

53450121033221 is a wasteful number, since it uses less digits than its factorization.

53450121033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9546369699.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 53450121033221 its reverse (12233012105435), we get a palindrome (65683133138656).

The spelling of 53450121033221 in words is "fifty-three trillion, four hundred fifty billion, one hundred twenty-one million, thirty-three thousand, two hundred twenty-one".