53434414021 has 4 divisors (see below), whose sum is σ = 53435267200. Its totient is φ = 53433560844.

The previous prime is 53434413983. The next prime is 53434414067. The reversal of 53434414021 is 12041443435.

53434414021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53434414021 - 2¹¹ = 53434411973 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 (53434414091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324501 + ... + 460618.

It is an arithmetic number, because the mean of its divisors is an integer number (13358816800).

Almost surely, 2^53434414021 is an apocalyptic number.

It is an amenable number.

53434414021 is a deficient number, since it is larger than the sum of its proper divisors (853179).

53434414021 is an equidigital number, since it uses as much as digits as its factorization.

53434414021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853178.

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

Adding to 53434414021 its reverse (12041443435), we get a palindrome (65475857456).

The spelling of 53434414021 in words is "fifty-three billion, four hundred thirty-four million, four hundred fourteen thousand, twenty-one".