5457256 has 64 divisors (see below), whose sum is σ = 12902400. Its totient is φ = 2109888.

The previous prime is 5457253. The next prime is 5457293. The reversal of 5457256 is 6527545.

It is not an unprimeable number, because it can be changed into a prime (5457253) 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, 24361 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (201600).

Almost surely, 2^5457256 is an apocalyptic number.

5457256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5457256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6451200).

5457256 is an abundant number, since it is smaller than the sum of its proper divisors (7445144).

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

5457256 is a wasteful number, since it uses less digits than its factorization.

5457256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 274 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 5457256 is about 2336.0770535237. The cubic root of 5457256 is about 176.0589506381.

The spelling of 5457256 in words is "five million, four hundred fifty-seven thousand, two hundred fifty-six".