2553155543 has 4 divisors (see below), whose sum is σ = 2553312840. Its totient is φ = 2552998248.

The previous prime is 2553155537. The next prime is 2553155551. The reversal of 2553155543 is 3455513552.

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 2553155543 - 2²⁰ = 2552106967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2553155497 and 2553155506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553155593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51080 + ... + 87837.

It is an arithmetic number, because the mean of its divisors is an integer number (638328210).

Almost surely, 2^2553155543 is an apocalyptic number.

2553155543 is a deficient number, since it is larger than the sum of its proper divisors (157297).

2553155543 is a wasteful number, since it uses less digits than its factorization.

2553155543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157296.

The product of its digits is 225000, while the sum is 38.

The square root of 2553155543 is about 50528.7595632428. The cubic root of 2553155543 is about 1366.7605174561.

The spelling of 2553155543 in words is "two billion, five hundred fifty-three million, one hundred fifty-five thousand, five hundred forty-three".