2255405 has 8 divisors (see below), whose sum is σ = 2793984. Its totient is φ = 1746000.

The previous prime is 2255399. The next prime is 2255411. The reversal of 2255405 is 5045522.

It is an interprime number because it is at equal distance from previous prime (2255399) and next prime (2255411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2255405 - 2¹⁸ = 1993261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7121 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (349248).

2^2255405 is an apocalyptic number.

It is an amenable number.

2255405 is a deficient number, since it is larger than the sum of its proper divisors (538579).

2255405 is a wasteful number, since it uses less digits than its factorization.

2255405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14587.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2255405 is about 1501.8005859634. The cubic root of 2255405 is about 131.1419125236.

The spelling of 2255405 in words is "two million, two hundred fifty-five thousand, four hundred five".