551622556 has 24 divisors (see below), whose sum is σ = 1009111040. Its totient is φ = 263530800.

The previous prime is 551622541. The next prime is 551622559. The reversal of 551622556 is 655226155.

It is a super-3 number, since 3×551622556³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551622559) by changing a digit.

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, 18360 + ... + 37951.

Almost surely, 2^551622556 is an apocalyptic number.

It is an amenable number.

551622556 is a deficient number, since it is larger than the sum of its proper divisors (457488484).

551622556 is a wasteful number, since it uses less digits than its factorization.

551622556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56425 (or 56423 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The square root of 551622556 is about 23486.6463336084. The cubic root of 551622556 is about 820.1261733271.

The spelling of 551622556 in words is "five hundred fifty-one million, six hundred twenty-two thousand, five hundred fifty-six".