53423214421 has 4 divisors (see below), whose sum is σ = 53424619200. Its totient is φ = 53421809644.

The previous prime is 53423214409. The next prime is 53423214431. The reversal of 53423214421 is 12441232435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53423214421 - 2¹⁷ = 53423083349 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 (53423214431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643711 + ... + 721948.

It is an arithmetic number, because the mean of its divisors is an integer number (13356154800).

Almost surely, 2^53423214421 is an apocalyptic number.

It is an amenable number.

53423214421 is a deficient number, since it is larger than the sum of its proper divisors (1404779).

53423214421 is a wasteful number, since it uses less digits than its factorization.

53423214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404778.

The product of its digits is 23040, while the sum is 31.

Adding to 53423214421 its reverse (12441232435), we get a palindrome (65864446856).

The spelling of 53423214421 in words is "fifty-three billion, four hundred twenty-three million, two hundred fourteen thousand, four hundred twenty-one".