26485517 has 4 divisors (see below), whose sum is σ = 26521536. Its totient is φ = 26449500.

The previous prime is 26485499. The next prime is 26485573. The reversal of 26485517 is 71558462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71558462 = 2 ⋅35779231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26485517 is a prime.

It is a super-2 number, since 2×26485517² = 1402965221514578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26485577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16883 + ... + 18384.

It is an arithmetic number, because the mean of its divisors is an integer number (6630384).

Almost surely, 2^26485517 is an apocalyptic number.

It is an amenable number.

26485517 is a deficient number, since it is larger than the sum of its proper divisors (36019).

26485517 is an equidigital number, since it uses as much as digits as its factorization.

26485517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36018.

The product of its digits is 67200, while the sum is 38.

The square root of 26485517 is about 5146.4081649243. The cubic root of 26485517 is about 298.0822746267.

The spelling of 26485517 in words is "twenty-six million, four hundred eighty-five thousand, five hundred seventeen".