2225631 has 4 divisors (see below), whose sum is σ = 2967512. Its totient is φ = 1483752.

The previous prime is 2225627. The next prime is 2225647. The reversal of 2225631 is 1365222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2225631 - 2² = 2225627 is a prime.

It is a super-2 number, since 2×2225631² = 9906866696322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2225598 and 2225607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225621) 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, 370936 + ... + 370941.

It is an arithmetic number, because the mean of its divisors is an integer number (741878).

2^2225631 is an apocalyptic number.

2225631 is a deficient number, since it is larger than the sum of its proper divisors (741881).

2225631 is an equidigital number, since it uses as much as digits as its factorization.

2225631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741880.

The product of its digits is 720, while the sum is 21.

The square root of 2225631 is about 1491.8548857044. The cubic root of 2225631 is about 130.5622785197.

The spelling of 2225631 in words is "two million, two hundred twenty-five thousand, six hundred thirty-one".