26665425 has 36 divisors (see below), whose sum is σ = 49314304. Its totient is φ = 13759200.

The previous prime is 26665421. The next prime is 26665453. The reversal of 26665425 is 52456662.

It is not a de Polignac number, because 26665425 - 2² = 26665421 is a prime.

It is a super-2 number, since 2×26665425² = 1422089780861250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 26665425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26665421) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 5064 + ... + 8886.

Almost surely, 2^26665425 is an apocalyptic number.

26665425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26665425 is a deficient number, since it is larger than the sum of its proper divisors (22648879).

26665425 is a wasteful number, since it uses less digits than its factorization.

26665425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870 (or 3862 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 26665425 is about 5163.8575696857. The cubic root of 26665425 is about 298.7556793561.

The spelling of 26665425 in words is "twenty-six million, six hundred sixty-five thousand, four hundred twenty-five".