5551506 has 24 divisors (see below), whose sum is σ = 12102480. Its totient is φ = 1839096.

The previous prime is 5551501. The next prime is 5551529. The reversal of 5551506 is 6051555.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5551506.

It is not an unprimeable number, because it can be changed into a prime (5551501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2361 + ... + 4083.

It is an arithmetic number, because the mean of its divisors is an integer number (504270).

Almost surely, 2^5551506 is an apocalyptic number.

5551506 is an abundant number, since it is smaller than the sum of its proper divisors (6550974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5551506 is a wasteful number, since it uses less digits than its factorization.

5551506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5551506 is about 2356.1634068969. The cubic root of 5551506 is about 177.0667181212.

The spelling of 5551506 in words is "five million, five hundred fifty-one thousand, five hundred six".