2555205121 has 8 divisors (see below), whose sum is σ = 2922651584. Its totient is φ = 2188362960.

The previous prime is 2555205083. The next prime is 2555205199. The reversal of 2555205121 is 1215025552.

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

It is not a de Polignac number, because 2555205121 - 2¹¹ = 2555203073 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 2555205121.

It is not an unprimeable number, because it can be changed into a prime (2555205421) 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, 141975 + ... + 158956.

It is an arithmetic number, because the mean of its divisors is an integer number (365331448).

Almost surely, 2^2555205121 is an apocalyptic number.

2555205121 is the 29185-th hex number.

It is an amenable number.

2555205121 is a deficient number, since it is larger than the sum of its proper divisors (367446463).

2555205121 is a wasteful number, since it uses less digits than its factorization.

2555205121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302151.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2555205121 is about 50549.0367959667. The cubic root of 2555205121 is about 1367.1261477499.

The spelling of 2555205121 in words is "two billion, five hundred fifty-five million, two hundred five thousand, one hundred twenty-one".