2153256 has 48 divisors (see below), whose sum is σ = 6265440. Its totient is φ = 614880.

The previous prime is 2153243. The next prime is 2153267. The reversal of 2153256 is 6523512.

It is a super-2 number, since 2×2153256² = 9273022803072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 2⁶ + 1 + 5⁷ + 3⁶ + 2¹² + 5⁸ + 6⁸ .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (130530).

2^2153256 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 2153256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3132720).

2153256 is an abundant number, since it is smaller than the sum of its proper divisors (4112184).

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

2153256 is a wasteful number, since it uses less digits than its factorization.

2153256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1843 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 2153256 is about 1467.3976966044. The cubic root of 2153256 is about 129.1314086678.

Adding to 2153256 its reverse (6523512), we get a palindrome (8676768).

The spelling of 2153256 in words is "two million, one hundred fifty-three thousand, two hundred fifty-six".