556006551 has 16 divisors (see below), whose sum is σ = 748897248. Its totient is φ = 366912000.

The previous prime is 556006547. The next prime is 556006571. The reversal of 556006551 is 155600655.

It is not a de Polignac number, because 556006551 - 2² = 556006547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556006571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130251 + ... + 134451.

It is an arithmetic number, because the mean of its divisors is an integer number (46806078).

Almost surely, 2^556006551 is an apocalyptic number.

556006551 is a deficient number, since it is larger than the sum of its proper divisors (192890697).

556006551 is a wasteful number, since it uses less digits than its factorization.

556006551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 556006551 is about 23579.7911568360. The cubic root of 556006551 is about 822.2930813583.

The spelling of 556006551 in words is "five hundred fifty-six million, six thousand, five hundred fifty-one".