26512985 has 8 divisors (see below), whose sum is σ = 32416200. Its totient is φ = 20809984.

The previous prime is 26512957. The next prime is 26513027. The reversal of 26512985 is 58921562.

It can be written as a sum of positive squares in 4 ways, for example, as 175561 + 26337424 = 419^2 + 5132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26512985 - 2⁸ = 26512729 is a prime.

It is a super-2 number, since 2×26512985² = 1405876747220450, which contains 22 as substring.

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, 49760 + ... + 50289.

It is an arithmetic number, because the mean of its divisors is an integer number (4052025).

Almost surely, 2^26512985 is an apocalyptic number.

It is an amenable number.

26512985 is a deficient number, since it is larger than the sum of its proper divisors (5903215).

26512985 is a wasteful number, since it uses less digits than its factorization.

26512985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100107.

The product of its digits is 43200, while the sum is 38.

The square root of 26512985 is about 5149.0761307248. The cubic root of 26512985 is about 298.1852855800.

It can be divided in two parts, 265 and 12985, that multiplied together give a square (3441025 = 1855²).

The spelling of 26512985 in words is "twenty-six million, five hundred twelve thousand, nine hundred eighty-five".