5423421253 has 4 divisors (see below), whose sum is σ = 5427893548. Its totient is φ = 5418948960.

The previous prime is 5423421251. The next prime is 5423421307. The reversal of 5423421253 is 3521243245.

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 424648449 + 4998772804 = 20607^2 + 70702^2 .

It is a cyclic number.

It is not a de Polignac number, because 5423421253 - 2¹ = 5423421251 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 (5423421251) 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, 2234328 + ... + 2236753.

It is an arithmetic number, because the mean of its divisors is an integer number (1356973387).

Almost surely, 2^5423421253 is an apocalyptic number.

It is an amenable number.

5423421253 is a deficient number, since it is larger than the sum of its proper divisors (4472295).

5423421253 is a wasteful number, since it uses less digits than its factorization.

5423421253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472294.

The product of its digits is 28800, while the sum is 31.

The square root of 5423421253 is about 73643.8813004855. The cubic root of 5423421253 is about 1756.9434349908.

Adding to 5423421253 its reverse (3521243245), we get a palindrome (8944664498).

The spelling of 5423421253 in words is "five billion, four hundred twenty-three million, four hundred twenty-one thousand, two hundred fifty-three".