2506315556 has 6 divisors (see below), whose sum is σ = 4386052230. Its totient is φ = 1253157776.

The previous prime is 2506315541. The next prime is 2506315597. The reversal of 2506315556 is 6555136052.

It can be written as a sum of positive squares in only one way, i.e., 1566893056 + 939422500 = 39584^2 + 30650^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313289441 + ... + 313289448.

It is an arithmetic number, because the mean of its divisors is an integer number (731008705).

Almost surely, 2^2506315556 is an apocalyptic number.

It is an amenable number.

2506315556 is a deficient number, since it is larger than the sum of its proper divisors (1879736674).

2506315556 is a wasteful number, since it uses less digits than its factorization.

2506315556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626578893 (or 626578891 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2506315556 is about 50063.1157240538. The cubic root of 2506315556 is about 1358.3507176952.

The spelling of 2506315556 in words is "two billion, five hundred six million, three hundred fifteen thousand, five hundred fifty-six".