26720275 has 6 divisors (see below), whose sum is σ = 33133172. Its totient is φ = 21376200.

The previous prime is 26720237. The next prime is 26720303. The reversal of 26720275 is 57202762.

It is not a de Polignac number, because 26720275 - 2¹¹ = 26718227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 534381 + ... + 534430.

Almost surely, 2^26720275 is an apocalyptic number.

26720275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26720275 is a deficient number, since it is larger than the sum of its proper divisors (6412897).

26720275 is a wasteful number, since it uses less digits than its factorization.

26720275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068821 (or 1068816 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 26720275 is about 5169.1657934332. The cubic root of 26720275 is about 298.9603829644.

The spelling of 26720275 in words is "twenty-six million, seven hundred twenty thousand, two hundred seventy-five".