2512120005 has 24 divisors (see below), whose sum is σ = 4610480472. Its totient is φ = 1260985344.

The previous prime is 2512120001. The next prime is 2512120027. The reversal of 2512120005 is 5000212152.

It can be written as a sum of positive squares in 4 ways, for example, as 1360060641 + 1152059364 = 36879^2 + 33942^2 .

It is not a de Polignac number, because 2512120005 - 2² = 2512120001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2512120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512120001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1641144 + ... + 1642673.

It is an arithmetic number, because the mean of its divisors is an integer number (192103353).

Almost surely, 2^2512120005 is an apocalyptic number.

It is an amenable number.

2512120005 is a deficient number, since it is larger than the sum of its proper divisors (2098360467).

2512120005 is a wasteful number, since it uses less digits than its factorization.

2512120005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283845 (or 3283842 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2512120005 is about 50121.0535104760. The cubic root of 2512120005 is about 1359.3985238577.

Adding to 2512120005 its reverse (5000212152), we get a palindrome (7512332157).

The spelling of 2512120005 in words is "two billion, five hundred twelve million, one hundred twenty thousand, five".