26672505 has 16 divisors (see below), whose sum is σ = 42941760. Its totient is φ = 14136768.

The previous prime is 26672501. The next prime is 26672531. The reversal of 26672505 is 50527662.

It is not a de Polignac number, because 26672505 - 2² = 26672501 is a prime.

It is a super-2 number, since 2×26672505² = 1422845045950050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26672501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3010 + ... + 7899.

It is an arithmetic number, because the mean of its divisors is an integer number (2683860).

Almost surely, 2^26672505 is an apocalyptic number.

It is an amenable number.

26672505 is a deficient number, since it is larger than the sum of its proper divisors (16269255).

26672505 is a wasteful number, since it uses less digits than its factorization.

26672505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 26672505 is about 5164.5430581998. The cubic root of 26672505 is about 298.7821181251.

It can be divided in two parts, 266 and 72505, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 26672505 in words is "twenty-six million, six hundred seventy-two thousand, five hundred five".