2265557 has 4 divisors (see below), whose sum is σ = 2589216. Its totient is φ = 1941900.

The previous prime is 2265551. The next prime is 2265581. The reversal of 2265557 is 7555622.

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 a cyclic number.

It is not a de Polignac number, because 2265557 - 2⁶ = 2265493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265551) 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, 161819 + ... + 161832.

It is an arithmetic number, because the mean of its divisors is an integer number (647304).

2^2265557 is an apocalyptic number.

It is an amenable number.

2265557 is a deficient number, since it is larger than the sum of its proper divisors (323659).

2265557 is an equidigital number, since it uses as much as digits as its factorization.

2265557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323658.

The product of its digits is 21000, while the sum is 32.

The square root of 2265557 is about 1505.1767338090. The cubic root of 2265557 is about 131.3383827983.

The spelling of 2265557 in words is "two million, two hundred sixty-five thousand, five hundred fifty-seven".