26057856 has 128 divisors (see below), whose sum is σ = 78336000. Its totient is φ = 7603200.

The previous prime is 26057849. The next prime is 26057891. The reversal of 26057856 is 65875062.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130845 + ... + 131043.

It is an arithmetic number, because the mean of its divisors is an integer number (612000).

Almost surely, 2^26057856 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 26057856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39168000).

26057856 is an abundant number, since it is smaller than the sum of its proper divisors (52278144).

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

26057856 is a wasteful number, since it uses less digits than its factorization.

26057856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 26057856 is about 5104.6896085854. The cubic root of 26057856 is about 296.4691852971.

The spelling of 26057856 in words is "twenty-six million, fifty-seven thousand, eight hundred fifty-six".