5551428 has 24 divisors (see below), whose sum is σ = 13174560. Its totient is φ = 1818880.

The previous prime is 5551423. The next prime is 5551433. The reversal of 5551428 is 8241555.

It is an interprime number because it is at equal distance from previous prime (5551423) and next prime (5551433).

It is a junction number, because it is equal to n+sod(n) for n = 5551395 and 5551404.

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 7 ways as a sum of consecutive naturals, for example, 3213 + ... + 4628.

It is an arithmetic number, because the mean of its divisors is an integer number (548940).

Almost surely, 2^5551428 is an apocalyptic number.

It is an amenable number.

5551428 is an abundant number, since it is smaller than the sum of its proper divisors (7623132).

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

5551428 is a wasteful number, since it uses less digits than its factorization.

5551428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7907 (or 7905 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 5551428 is about 2356.1468545063. The cubic root of 5551428 is about 177.0658888406.

The spelling of 5551428 in words is "five million, five hundred fifty-one thousand, four hundred twenty-eight".