1556125 has 16 divisors (see below), whose sum is σ = 1984320. Its totient is φ = 1218000.

The previous prime is 1556117. The next prime is 1556147. The reversal of 1556125 is 5216551.

It is not a de Polignac number, because 1556125 - 2³ = 1556117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 1556125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7270 + ... + 7480.

It is an arithmetic number, because the mean of its divisors is an integer number (124020).

2^1556125 is an apocalyptic number.

It is an amenable number.

1556125 is a deficient number, since it is larger than the sum of its proper divisors (428195).

1556125 is an equidigital number, since it uses as much as digits as its factorization.

1556125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 275 counting only the distinct ones).

The product of its digits is 1500, while the sum is 25.

The square root of 1556125 is about 1247.4473936804. The cubic root of 1556125 is about 115.8816917051.

It can be divided in two parts, 1556 and 125, that added together give a square (1681 = 41²).

The spelling of 1556125 in words is "one million, five hundred fifty-six thousand, one hundred twenty-five".