2553434421 has 4 divisors (see below), whose sum is σ = 3404579232. Its totient is φ = 1702289612.

The previous prime is 2553434399. The next prime is 2553434423. The reversal of 2553434421 is 1244343552.

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 2553434421 - 2²³ = 2545045813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553434423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425572401 + ... + 425572406.

It is an arithmetic number, because the mean of its divisors is an integer number (851144808).

Almost surely, 2^2553434421 is an apocalyptic number.

It is an amenable number.

2553434421 is a deficient number, since it is larger than the sum of its proper divisors (851144811).

2553434421 is an equidigital number, since it uses as much as digits as its factorization.

2553434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851144810.

The product of its digits is 57600, while the sum is 33.

The square root of 2553434421 is about 50531.5190846268. The cubic root of 2553434421 is about 1366.8102788274.

Adding to 2553434421 its reverse (1244343552), we get a palindrome (3797777973).

The spelling of 2553434421 in words is "two billion, five hundred fifty-three million, four hundred thirty-four thousand, four hundred twenty-one".