2506005651311 has 4 divisors (see below), whose sum is σ = 2506014486000. Its totient is φ = 2505996816624.

The previous prime is 2506005651293. The next prime is 2506005651437. The reversal of 2506005651311 is 1131565006052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2506005651311 - 2¹⁰ = 2506005650287 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 (2506005651811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3977246 + ... + 4564043.

It is an arithmetic number, because the mean of its divisors is an integer number (626503621500).

Almost surely, 2^{2506005651311} is an apocalyptic number.

2506005651311 is a deficient number, since it is larger than the sum of its proper divisors (8834689).

2506005651311 is an equidigital number, since it uses as much as digits as its factorization.

2506005651311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8834688.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 2506005651311 in words is "two trillion, five hundred six billion, five million, six hundred fifty-one thousand, three hundred eleven".