2553530243543 has 4 divisors (see below), whose sum is σ = 2584295668248. Its totient is φ = 2522764818840.

The previous prime is 2553530243501. The next prime is 2553530243569. The reversal of 2553530243543 is 3453420353552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2553530243543 - 2²⁰ = 2553529194967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2553530243494 and 2553530243503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553530240543) 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, 15382712228 + ... + 15382712393.

It is an arithmetic number, because the mean of its divisors is an integer number (646073917062).

Almost surely, 2^{2553530243543} is an apocalyptic number.

2553530243543 is a deficient number, since it is larger than the sum of its proper divisors (30765424705).

2553530243543 is an equidigital number, since it uses as much as digits as its factorization.

2553530243543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30765424704.

The product of its (nonzero) digits is 3240000, while the sum is 44.

The spelling of 2553530243543 in words is "two trillion, five hundred fifty-three billion, five hundred thirty million, two hundred forty-three thousand, five hundred forty-three".