53345514921 has 8 divisors (see below), whose sum is σ = 71137251264. Its totient is φ = 35558727600.

The previous prime is 53345514919. The next prime is 53345514923. The reversal of 53345514921 is 12941554335.

It is an interprime number because it is at equal distance from previous prime (53345514919) and next prime (53345514923).

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

It is not a de Polignac number, because 53345514921 - 2¹ = 53345514919 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (53345514923) 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, 1212030 + ... + 1255271.

It is an arithmetic number, because the mean of its divisors is an integer number (8892156408).

Almost surely, 2^53345514921 is an apocalyptic number.

It is an amenable number.

53345514921 is a deficient number, since it is larger than the sum of its proper divisors (17791736343).

53345514921 is a wasteful number, since it uses less digits than its factorization.

53345514921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474511.

The product of its digits is 324000, while the sum is 42.

It can be divided in two parts, 5334 and 5514921, that added together give a palindrome (5520255).

The spelling of 53345514921 in words is "fifty-three billion, three hundred forty-five million, five hundred fourteen thousand, nine hundred twenty-one".