2255641 has 4 divisors (see below), whose sum is σ = 2259072. Its totient is φ = 2252212.

The previous prime is 2255639. The next prime is 2255657. The reversal of 2255641 is 1465522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1465522 = 2 ⋅732761.

It is a cyclic number.

It is not a de Polignac number, because 2255641 - 2¹ = 2255639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (564768).

2^2255641 is an apocalyptic number.

It is an amenable number.

2255641 is a deficient number, since it is larger than the sum of its proper divisors (3431).

2255641 is an equidigital number, since it uses as much as digits as its factorization.

2255641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430.

The product of its digits is 2400, while the sum is 25.

The square root of 2255641 is about 1501.8791562573. The cubic root of 2255641 is about 131.1464864858.

The spelling of 2255641 in words is "two million, two hundred fifty-five thousand, six hundred forty-one".