5551840 has 48 divisors (see below), whose sum is σ = 14992992. Its totient is φ = 1903104.

The previous prime is 5551837. The next prime is 5551853. The reversal of 5551840 is 481555.

5551840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 5551799 and 5551808.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1359 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (312354).

Almost surely, 2^5551840 is an apocalyptic number.

It is an amenable number.

5551840 is an abundant number, since it is smaller than the sum of its proper divisors (9441152).

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

5551840 is a wasteful number, since it uses less digits than its factorization.

5551840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4971 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 5551840 is about 2356.2342837672. The cubic root of 5551840 is about 177.0702690554.

The spelling of 5551840 in words is "five million, five hundred fifty-one thousand, eight hundred forty".