2506801906 has 16 divisors (see below), whose sum is σ = 4298512320. Its totient is φ = 1074059280.

The previous prime is 2506801873. The next prime is 2506801931. The reversal of 2506801906 is 6091086052.

2506801906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 36316 + ... + 79576.

It is an arithmetic number, because the mean of its divisors is an integer number (268657020).

Almost surely, 2^2506801906 is an apocalyptic number.

2506801906 is a deficient number, since it is larger than the sum of its proper divisors (1791710414).

2506801906 is a wasteful number, since it uses less digits than its factorization.

2506801906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47409.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2506801906 is about 50067.9728569072. The cubic root of 2506801906 is about 1358.4385745684.

Adding to 2506801906 its reverse (6091086052), we get a palindrome (8597887958).

The spelling of 2506801906 in words is "two billion, five hundred six million, eight hundred one thousand, nine hundred six".