2511321887 has 2 divisors, whose sum is σ = 2511321888. Its totient is φ = 2511321886.

The previous prime is 2511321863. The next prime is 2511321937. The reversal of 2511321887 is 7881231152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2511321887 - 2⁶ = 2511321823 is a prime.

It is a super-3 number, since 3×2511321887³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2511321887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2511321847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255660943 + 1255660944.

It is an arithmetic number, because the mean of its divisors is an integer number (1255660944).

Almost surely, 2^2511321887 is an apocalyptic number.

2511321887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511321887 is an equidigital number, since it uses as much as digits as its factorization.

2511321887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 38.

The square root of 2511321887 is about 50113.0909743153. The cubic root of 2511321887 is about 1359.2545451532.

The spelling of 2511321887 in words is "two billion, five hundred eleven million, three hundred twenty-one thousand, eight hundred eighty-seven".