2506644145 has 8 divisors (see below), whose sum is σ = 3111696360. Its totient is φ = 1936166400.

The previous prime is 2506644109. The next prime is 2506644163. The reversal of 2506644145 is 5414466052.

It can be written as a sum of positive squares in 4 ways, for example, as 23415921 + 2483228224 = 4839^2 + 49832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2506644145 - 2¹⁵ = 2506611377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8643456 + ... + 8643745.

It is an arithmetic number, because the mean of its divisors is an integer number (388962045).

Almost surely, 2^2506644145 is an apocalyptic number.

It is an amenable number.

2506644145 is a deficient number, since it is larger than the sum of its proper divisors (605052215).

2506644145 is a wasteful number, since it uses less digits than its factorization.

2506644145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17287235.

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 2506644145 is about 50066.3973639007. The cubic root of 2506644145 is about 1358.4100770203.

The spelling of 2506644145 in words is "two billion, five hundred six million, six hundred forty-four thousand, one hundred forty-five".