2555443129 has 4 divisors (see below), whose sum is σ = 2666549376. Its totient is φ = 2444336884.

The previous prime is 2555443123. The next prime is 2555443139. The reversal of 2555443129 is 9213445552.

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 2555443129 - 2⁵ = 2555443097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2555443091 and 2555443100.

It is not an unprimeable number, because it can be changed into a prime (2555443123) 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, 55553089 + ... + 55553134.

It is an arithmetic number, because the mean of its divisors is an integer number (666637344).

Almost surely, 2^2555443129 is an apocalyptic number.

It is an amenable number.

2555443129 is a deficient number, since it is larger than the sum of its proper divisors (111106247).

2555443129 is a wasteful number, since it uses less digits than its factorization.

2555443129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111106246.

The product of its digits is 216000, while the sum is 40.

The square root of 2555443129 is about 50551.3909699822. The cubic root of 2555443129 is about 1367.1685940301.

The spelling of 2555443129 in words is "two billion, five hundred fifty-five million, four hundred forty-three thousand, one hundred twenty-nine".