26090250 has 64 divisors (see below), whose sum is σ = 66718080. Its totient is φ = 6787200.

The previous prime is 26090237. The next prime is 26090279. The reversal of 26090250 is 5209062.

It is a super-2 number, since 2×26090250² = 1361402290125000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26090250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31846 + ... + 32654.

It is an arithmetic number, because the mean of its divisors is an integer number (1042470).

Almost surely, 2^26090250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26090250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33359040).

26090250 is an abundant number, since it is smaller than the sum of its proper divisors (40627830).

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

26090250 is a wasteful number, since it uses less digits than its factorization.

26090250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 26090250 is about 5107.8615877880. The cubic root of 26090250 is about 296.5919869818.

The spelling of 26090250 in words is "twenty-six million, ninety thousand, two hundred fifty".