5551420 has 48 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 1802304.

The previous prime is 5551417. The next prime is 5551423. The reversal of 5551420 is 241555.

It is an interprime number because it is at equal distance from previous prime (5551417) and next prime (5551423).

It is a junction number, because it is equal to n+sod(n) for n = 5551391 and 5551400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617 + ... + 3703.

It is an arithmetic number, because the mean of its divisors is an integer number (292320).

Almost surely, 2^5551420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7015680).

5551420 is an abundant number, since it is smaller than the sum of its proper divisors (8479940).

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

5551420 is a wasteful number, since it uses less digits than its factorization.

5551420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 5551420 is about 2356.1451568187. The cubic root of 5551420 is about 177.0658037858.

Adding to 5551420 its reverse (241555), we get a palindrome (5792975).

The spelling of 5551420 in words is "five million, five hundred fifty-one thousand, four hundred twenty".