5551678 has 16 divisors (see below), whose sum is σ = 9160704. Its totient is φ = 2502360.

The previous prime is 5551669. The next prime is 5551699. The reversal of 5551678 is 8761555.

It is a super-2 number, since 2×5551678² = 61642257231368, which contains 22 as substring.

It is a congruent number.

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, 1801 + ... + 3787.

It is an arithmetic number, because the mean of its divisors is an integer number (572544).

Almost surely, 2^5551678 is an apocalyptic number.

5551678 is a deficient number, since it is larger than the sum of its proper divisors (3609026).

5551678 is a wasteful number, since it uses less digits than its factorization.

5551678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127.

The product of its digits is 42000, while the sum is 37.

The square root of 5551678 is about 2356.1999066293. The cubic root of 5551678 is about 177.0685467638.

The spelling of 5551678 in words is "five million, five hundred fifty-one thousand, six hundred seventy-eight".