55010028 has 48 divisors (see below), whose sum is σ = 139243104. Its totient is φ = 16834560.

The previous prime is 55010003. The next prime is 55010041. The reversal of 55010028 is 82001055.

It is a super-2 number, since 2×55010028² = 6052206361121568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55009986 and 55010013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5076 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (2900898).

Almost surely, 2^55010028 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 55010028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69621552).

55010028 is an abundant number, since it is smaller than the sum of its proper divisors (84233076).

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

55010028 is a wasteful number, since it uses less digits than its factorization.

55010028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642 (or 6640 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 55010028 is about 7416.8745439032. The cubic root of 55010028 is about 380.3183574033.

The spelling of 55010028 in words is "fifty-five million, ten thousand, twenty-eight".