1856225 has 12 divisors (see below), whose sum is σ = 2630784. Its totient is φ = 1272720.

The previous prime is 1856221. The next prime is 1856227. The reversal of 1856225 is 5226581.

It is not a de Polignac number, because 1856225 - 2² = 1856221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1856221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5129 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (219232).

2^1856225 is an apocalyptic number.

It is an amenable number.

1856225 is a deficient number, since it is larger than the sum of its proper divisors (774559).

1856225 is a wasteful number, since it uses less digits than its factorization.

1856225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10624 (or 10619 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 1856225 is about 1362.4334846149. The cubic root of 1856225 is about 122.8976388561.

The spelling of 1856225 in words is "one million, eight hundred fifty-six thousand, two hundred twenty-five".