2521072808 has 8 divisors (see below), whose sum is σ = 4727011530. Its totient is φ = 1260536400.

The previous prime is 2521072789. The next prime is 2521072819. The reversal of 2521072808 is 8082701252.

It can be written as a sum of positive squares in only one way, i.e., 1287517924 + 1233554884 = 35882^2 + 35122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157567043 + ... + 157567058.

Almost surely, 2^2521072808 is an apocalyptic number.

It is an amenable number.

2521072808 is a deficient number, since it is larger than the sum of its proper divisors (2205938722).

2521072808 is a wasteful number, since it uses less digits than its factorization.

2521072808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315134107 (or 315134103 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 2521072808 is about 50210.2858784931. The cubic root of 2521072808 is about 1361.0115038484.

The spelling of 2521072808 in words is "two billion, five hundred twenty-one million, seventy-two thousand, eight hundred eight".