26123520 has 72 divisors (see below), whose sum is σ = 83444256. Its totient is φ = 6965248.

The previous prime is 26123497. The next prime is 26123533. The reversal of 26123520 is 2532162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (1158948).

Almost surely, 2^26123520 is an apocalyptic number.

26123520 is a gapful number since it is divisible by the number (20) 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 26123520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41722128).

26123520 is an abundant number, since it is smaller than the sum of its proper divisors (57320736).

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

26123520 is an equidigital number, since it uses as much as digits as its factorization.

26123520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827 (or 6813 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 26123520 is about 5111.1172946822. The cubic root of 26123520 is about 296.7180037124.

Adding to 26123520 its reverse (2532162), we get a palindrome (28655682).

The spelling of 26123520 in words is "twenty-six million, one hundred twenty-three thousand, five hundred twenty".