10530256 has 80 divisors (see below), whose sum is σ = 24284160. Its totient is φ = 4371840.

The previous prime is 10530253. The next prime is 10530263. The reversal of 10530256 is 65203501.

It is a happy number.

It is a super-2 number, since 2×10530256² = 221772582851072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10530253) 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, 157135 + ... + 157201.

It is an arithmetic number, because the mean of its divisors is an integer number (303552).

Almost surely, 2^10530256 is an apocalyptic number.

10530256 is a gapful number since it is divisible by the number (16) 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 10530256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12142080).

10530256 is an abundant number, since it is smaller than the sum of its proper divisors (13753904).

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

10530256 is a wasteful number, since it uses less digits than its factorization.

10530256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 10530256 is about 3245.0355930251. The cubic root of 10530256 is about 219.1860834399.

Adding to 10530256 its reverse (65203501), we get a palindrome (75733757).

The spelling of 10530256 in words is "ten million, five hundred thirty thousand, two hundred fifty-six".