2453256 has 48 divisors (see below), whose sum is σ = 7158060. Its totient is φ = 754560.

The previous prime is 2453251. The next prime is 2453273. The reversal of 2453256 is 6523542.

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 900 = 1566^2 + 30^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2453251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 375 + ... + 2246.

2^2453256 is an apocalyptic number.

2453256 is a gapful number since it is divisible by the number (26) 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 2453256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3579030).

2453256 is an abundant number, since it is smaller than the sum of its proper divisors (4704804).

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

2453256 is a wasteful number, since it uses less digits than its factorization.

2453256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2639 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2453256 is about 1566.2873299622. The cubic root of 2453256 is about 134.8696684546.

Adding to 2453256 its reverse (6523542), we get a palindrome (8976798).

The spelling of 2453256 in words is "two million, four hundred fifty-three thousand, two hundred fifty-six".