5435253351221 has 4 divisors (see below), whose sum is σ = 5439647251692. Its totient is φ = 5430859450752.

The previous prime is 5435253351211. The next prime is 5435253351223. The reversal of 5435253351221 is 1221533525345.

5435253351221 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4323546710596 + 1111706640625 = 2079314^2 + 1054375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5435253351221 - 2²⁶ = 5435186242357 is a prime.

It is a super-2 number, since 2×5435253351221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5435253351223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196948380 + ... + 2196950853.

It is an arithmetic number, because the mean of its divisors is an integer number (1359911812923).

Almost surely, 2^{5435253351221} is an apocalyptic number.

It is an amenable number.

5435253351221 is a deficient number, since it is larger than the sum of its proper divisors (4393900471).

5435253351221 is a wasteful number, since it uses less digits than its factorization.

5435253351221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393900470.

The product of its digits is 540000, while the sum is 41.

Adding to 5435253351221 its reverse (1221533525345), we get a palindrome (6656786876566).

The spelling of 5435253351221 in words is "five trillion, four hundred thirty-five billion, two hundred fifty-three million, three hundred fifty-one thousand, two hundred twenty-one".