26400255 has 16 divisors (see below), whose sum is σ = 48274944. Its totient is φ = 12068640.

The previous prime is 26400247. The next prime is 26400271. The reversal of 26400255 is 55200462.

It is not a de Polignac number, because 26400255 - 2³ = 26400247 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 125611 + ... + 125820.

It is an arithmetic number, because the mean of its divisors is an integer number (3017184).

Almost surely, 2^26400255 is an apocalyptic number.

26400255 is a deficient number, since it is larger than the sum of its proper divisors (21874689).

26400255 is a wasteful number, since it uses less digits than its factorization.

26400255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251446.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 26400255 is about 5138.1178460600. The cubic root of 26400255 is about 297.7620692882.

The spelling of 26400255 in words is "twenty-six million, four hundred thousand, two hundred fifty-five".