2556606626 has 16 divisors (see below), whose sum is σ = 4383516096. Its totient is φ = 1095498096.

The previous prime is 2556606601. The next prime is 2556606631. The reversal of 2556606626 is 6266066552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93560 + ... + 117756.

It is an arithmetic number, because the mean of its divisors is an integer number (273969756).

Almost surely, 2^2556606626 is an apocalyptic number.

2556606626 is a deficient number, since it is larger than the sum of its proper divisors (1826909470).

2556606626 is a wasteful number, since it uses less digits than its factorization.

2556606626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31753.

The product of its (nonzero) digits is 777600, while the sum is 44.

The square root of 2556606626 is about 50562.8977215507. The cubic root of 2556606626 is about 1367.3760538356.

The spelling of 2556606626 in words is "two billion, five hundred fifty-six million, six hundred six thousand, six hundred twenty-six".