5551458 has 48 divisors (see below), whose sum is σ = 12838176. Its totient is φ = 1586880.

The previous prime is 5551453. The next prime is 5551459. The reversal of 5551458 is 8541555.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551453) 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 23 ways as a sum of consecutive naturals, for example, 23710 + ... + 23942.

It is an arithmetic number, because the mean of its divisors is an integer number (267462).

Almost surely, 2^5551458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6419088).

5551458 is an abundant number, since it is smaller than the sum of its proper divisors (7286718).

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

5551458 is a wasteful number, since it uses less digits than its factorization.

5551458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 268 counting only the distinct ones).

The product of its digits is 20000, while the sum is 33.

The square root of 5551458 is about 2356.1532208241. The cubic root of 5551458 is about 177.0662077956.

The spelling of 5551458 in words is "five million, five hundred fifty-one thousand, four hundred fifty-eight".