5551863 has 8 divisors (see below), whose sum is σ = 7426176. Its totient is φ = 3689400.

The previous prime is 5551853. The next prime is 5551867. The reversal of 5551863 is 3681555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5551863 - 2⁵ = 5551831 is a prime.

5551863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (928272).

Almost surely, 2^5551863 is an apocalyptic number.

5551863 is a deficient number, since it is larger than the sum of its proper divisors (1874313).

5551863 is a wasteful number, since it uses less digits than its factorization.

5551863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925.

The product of its digits is 18000, while the sum is 33.

The square root of 5551863 is about 2356.2391644313. The cubic root of 5551863 is about 177.0705135756.

The spelling of 5551863 in words is "five million, five hundred fifty-one thousand, eight hundred sixty-three".