2505105808 has 20 divisors (see below), whose sum is σ = 4860832860. Its totient is φ = 1250697344.

The previous prime is 2505105797. The next prime is 2505105853. The reversal of 2505105808 is 8085015052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2268807424 + 236298384 = 47632^2 + 15372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104803 + ... + 126466.

It is an arithmetic number, because the mean of its divisors is an integer number (243041643).

Almost surely, 2^2505105808 is an apocalyptic number.

It is an amenable number.

2505105808 is a deficient number, since it is larger than the sum of its proper divisors (2355727052).

2505105808 is a wasteful number, since it uses less digits than its factorization.

2505105808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231954 (or 231948 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 2505105808 is about 50051.0320373117. The cubic root of 2505105808 is about 1358.1321330188.

The spelling of 2505105808 in words is "two billion, five hundred five million, one hundred five thousand, eight hundred eight".