26051616 has 108 divisors (see below), whose sum is σ = 78949962. Its totient is φ = 8146944.

The previous prime is 26051609. The next prime is 26051629. The reversal of 26051616 is 61615062.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21123216 + 4928400 = 4596^2 + 2220^2 .

It is a super-2 number, since 2×26051616² = 1357373392422912, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 26051616.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 83076 + ... + 83388.

Almost surely, 2^26051616 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 26051616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39474981).

26051616 is an abundant number, since it is smaller than the sum of its proper divisors (52898346).

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

26051616 is a wasteful number, since it uses less digits than its factorization.

26051616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 26051616 is about 5104.0783693043. The cubic root of 26051616 is about 296.4455185329.

Adding to 26051616 its reverse (61615062), we get a palindrome (87666678).

The spelling of 26051616 in words is "twenty-six million, fifty-one thousand, six hundred sixteen".