2631062605 has 4 divisors (see below), whose sum is σ = 3157275132. Its totient is φ = 2104850080.

The previous prime is 2631062593. The next prime is 2631062633. The reversal of 2631062605 is 5062601362.

2631062605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 267060964 + 2364001641 = 16342^2 + 48621^2 .

It is not a de Polignac number, because 2631062605 - 2²⁷ = 2496844877 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263106256 + ... + 263106265.

It is an arithmetic number, because the mean of its divisors is an integer number (789318783).

Almost surely, 2^2631062605 is an apocalyptic number.

It is an amenable number.

2631062605 is a deficient number, since it is larger than the sum of its proper divisors (526212527).

2631062605 is an equidigital number, since it uses as much as digits as its factorization.

2631062605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526212526.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2631062605 is about 51293.8846744912. The cubic root of 2631062605 is about 1380.5232569022.

Adding to 2631062605 its reverse (5062601362), we get a palindrome (7693663967).

The spelling of 2631062605 in words is "two billion, six hundred thirty-one million, sixty-two thousand, six hundred five".