26013530 has 16 divisors (see below), whose sum is σ = 46923624. Its totient is φ = 10383360.

The previous prime is 26013523. The next prime is 26013541. The reversal of 26013530 is 3531062.

It can be written as a sum of positive squares in 4 ways, for example, as 16459249 + 9554281 = 4057^2 + 3091^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2714 + ... + 7706.

Almost surely, 2^26013530 is an apocalyptic number.

26013530 is a deficient number, since it is larger than the sum of its proper divisors (20910094).

26013530 is a wasteful number, since it uses less digits than its factorization.

26013530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5521.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 26013530 is about 5100.3460666900. The cubic root of 26013530 is about 296.3009858421.

Adding to 26013530 its reverse (3531062), we get a palindrome (29544592).

It can be divided in two parts, 2 and 6013530, that multiplied together give a triangular number (12027060 = T₄₉₀₄).

The spelling of 26013530 in words is "twenty-six million, thirteen thousand, five hundred thirty".