2506155868 has 24 divisors (see below), whose sum is σ = 4446590400. Its totient is φ = 1235739648.

The previous prime is 2506155863. The next prime is 2506155871. The reversal of 2506155868 is 8685516052.

It is a happy number.

2506155868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506155863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289296 + ... + 297832.

It is an arithmetic number, because the mean of its divisors is an integer number (185274600).

Almost surely, 2^2506155868 is an apocalyptic number.

It is an amenable number.

2506155868 is a deficient number, since it is larger than the sum of its proper divisors (1940434532).

2506155868 is a wasteful number, since it uses less digits than its factorization.

2506155868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549 (or 9547 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The square root of 2506155868 is about 50061.5208318725. The cubic root of 2506155868 is about 1358.3218683196.

The spelling of 2506155868 in words is "two billion, five hundred six million, one hundred fifty-five thousand, eight hundred sixty-eight".