5120280828 has 72 divisors (see below), whose sum is σ = 13970571888. Its totient is φ = 1571851008.

The previous prime is 5120280793. The next prime is 5120280863. The reversal of 5120280828 is 8280820215.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5120280793) and next prime (5120280863).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5120280792 and 5120280801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194976 + ... + 219672.

Almost surely, 2^5120280828 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 5120280828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6985285944).

5120280828 is an abundant number, since it is smaller than the sum of its proper divisors (8850291060).

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

5120280828 is a wasteful number, since it uses less digits than its factorization.

5120280828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25163 (or 25158 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 5120280828 is about 71556.1375983919. The cubic root of 5120280828 is about 1723.5792631986.

The spelling of 5120280828 in words is "five billion, one hundred twenty million, two hundred eighty thousand, eight hundred twenty-eight".