2555298261 has 6 divisors (see below), whose sum is σ = 3690986390. Its totient is φ = 1703532168.

The previous prime is 2555298259. The next prime is 2555298289. The reversal of 2555298261 is 1628925552.

2555298261 is a `hidden beast` number, since 2 + 5 + 552 + 98 + 2 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2011522500 + 543775761 = 44850^2 + 23319^2 .

It is not a de Polignac number, because 2555298261 - 2¹ = 2555298259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555298241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141961006 + ... + 141961023.

Almost surely, 2^2555298261 is an apocalyptic number.

It is an amenable number.

2555298261 is a deficient number, since it is larger than the sum of its proper divisors (1135688129).

2555298261 is a wasteful number, since it uses less digits than its factorization.

2555298261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283922035 (or 283922032 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 2555298261 is about 50549.9580711992. The cubic root of 2555298261 is about 1367.1427586254.

The spelling of 2555298261 in words is "two billion, five hundred fifty-five million, two hundred ninety-eight thousand, two hundred sixty-one".