2255961 has 4 divisors (see below), whose sum is σ = 3007952. Its totient is φ = 1503972.

The previous prime is 2255959. The next prime is 2255969. The reversal of 2255961 is 1695522.

It is a happy number.

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.

It is not a de Polignac number, because 2255961 - 2¹ = 2255959 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255969) 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, 375991 + ... + 375996.

It is an arithmetic number, because the mean of its divisors is an integer number (751988).

2^2255961 is an apocalyptic number.

It is an amenable number.

2255961 is a deficient number, since it is larger than the sum of its proper divisors (751991).

2255961 is an equidigital number, since it uses as much as digits as its factorization.

2255961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751990.

The product of its digits is 5400, while the sum is 30.

The square root of 2255961 is about 1501.9856856841. The cubic root of 2255961 is about 131.1526879589.

The spelling of 2255961 in words is "two million, two hundred fifty-five thousand, nine hundred sixty-one".