2553231421 has 8 divisors (see below), whose sum is σ = 2752444800. Its totient is φ = 2354419632.

The previous prime is 2553231409. The next prime is 2553231451. The reversal of 2553231421 is 1241323552.

2553231421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2553231421 - 2⁷ = 2553231293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2553231421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553231451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87121 + ... + 112678.

It is an arithmetic number, because the mean of its divisors is an integer number (344055600).

Almost surely, 2^2553231421 is an apocalyptic number.

It is an amenable number.

2553231421 is a deficient number, since it is larger than the sum of its proper divisors (199213379).

2553231421 is a wasteful number, since it uses less digits than its factorization.

2553231421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200795.

The product of its digits is 7200, while the sum is 28.

The square root of 2553231421 is about 50529.5103973906. The cubic root of 2553231421 is about 1366.7740570447.

Adding to 2553231421 its reverse (1241323552), we get a palindrome (3794554973).

It can be divided in two parts, 25532 and 31421, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 2553231421 in words is "two billion, five hundred fifty-three million, two hundred thirty-one thousand, four hundred twenty-one".