26215012 has 12 divisors (see below), whose sum is σ = 45943996. Its totient is φ = 13088160.

The previous prime is 26214973. The next prime is 26215067. The reversal of 26215012 is 21051262.

It can be written as a sum of positive squares in 2 ways, for example, as 22505536 + 3709476 = 4744^2 + 1926^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539 + ... + 7402.

Almost surely, 2^26215012 is an apocalyptic number.

It is an amenable number.

26215012 is a deficient number, since it is larger than the sum of its proper divisors (19728984).

26215012 is a wasteful number, since it uses less digits than its factorization.

26215012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678 (or 9676 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 26215012 is about 5120.0597652762. The cubic root of 26215012 is about 297.0639970620.

Adding to 26215012 its reverse (21051262), we get a palindrome (47266274).

The spelling of 26215012 in words is "twenty-six million, two hundred fifteen thousand, twelve".