5257128 has 32 divisors (see below), whose sum is σ = 13203360. Its totient is φ = 1744320.

The previous prime is 5257121. The next prime is 5257157. The reversal of 5257128 is 8217525.

It is a junction number, because it is equal to n+sod(n) for n = 5257095 and 5257104.

It is not an unprimeable number, because it can be changed into a prime (5257121) 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, 7263 + ... + 7953.

It is an arithmetic number, because the mean of its divisors is an integer number (412605).

Almost surely, 2^5257128 is an apocalyptic number.

It is an amenable number.

5257128 is an abundant number, since it is smaller than the sum of its proper divisors (7946232).

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

5257128 is a wasteful number, since it uses less digits than its factorization.

5257128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1013 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 5257128 is about 2292.8427769910. The cubic root of 5257128 is about 173.8799541902.

The spelling of 5257128 in words is "five million, two hundred fifty-seven thousand, one hundred twenty-eight".