26016520 has 16 divisors (see below), whose sum is σ = 58537260. Its totient is φ = 10406592.

The previous prime is 26016503. The next prime is 26016527. The reversal of 26016520 is 2561062.

It can be written as a sum of positive squares in 2 ways, for example, as 25060036 + 956484 = 5006^2 + 978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26016491 and 26016500.

It is not an unprimeable number, because it can be changed into a prime (26016527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325167 + ... + 325246.

Almost surely, 2^26016520 is an apocalyptic number.

26016520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26016520 is an abundant number, since it is smaller than the sum of its proper divisors (32520740).

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

26016520 is a wasteful number, since it uses less digits than its factorization.

26016520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650424 (or 650420 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 26016520 is about 5100.6391756328. The cubic root of 26016520 is about 296.3123377040.

Adding to 26016520 its reverse (2561062), we get a palindrome (28577582).

The spelling of 26016520 in words is "twenty-six million, sixteen thousand, five hundred twenty".