2625625556 has 6 divisors (see below), whose sum is σ = 4594844730. Its totient is φ = 1312812776.

The previous prime is 2625625549. The next prime is 2625625573. The reversal of 2625625556 is 6555265262.

It can be written as a sum of positive squares in only one way, i.e., 2037077956 + 588547600 = 45134^2 + 24260^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328203191 + ... + 328203198.

It is an arithmetic number, because the mean of its divisors is an integer number (765807455).

Almost surely, 2^2625625556 is an apocalyptic number.

It is an amenable number.

2625625556 is a deficient number, since it is larger than the sum of its proper divisors (1969219174).

2625625556 is a wasteful number, since it uses less digits than its factorization.

2625625556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656406393 (or 656406391 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 44.

The square root of 2625625556 is about 51240.8582675974. The cubic root of 2625625556 is about 1379.5716579998.

The spelling of 2625625556 in words is "two billion, six hundred twenty-five million, six hundred twenty-five thousand, five hundred fifty-six".