2555131247 has 2 divisors, whose sum is σ = 2555131248. Its totient is φ = 2555131246.

The previous prime is 2555131199. The next prime is 2555131261. The reversal of 2555131247 is 7421315552.

2555131247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2555131247 - 2¹⁰ = 2555130223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555131277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277565623 + 1277565624.

It is an arithmetic number, because the mean of its divisors is an integer number (1277565624).

Almost surely, 2^2555131247 is an apocalyptic number.

2555131247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555131247 is an equidigital number, since it uses as much as digits as its factorization.

2555131247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 2555131247 is about 50548.3060744868. The cubic root of 2555131247 is about 1367.1129725453.

Adding to 2555131247 its reverse (7421315552), we get a palindrome (9976446799).

The spelling of 2555131247 in words is "two billion, five hundred fifty-five million, one hundred thirty-one thousand, two hundred forty-seven".