1255625 has 30 divisors (see below), whose sum is σ = 1869714. Its totient is φ = 840000.

The previous prime is 1255619. The next prime is 1255633. The reversal of 1255625 is 5265521.

It can be written as a sum of positive squares in 5 ways, for example, as 840889 + 414736 = 917^2 + 644^2 .

It is not a de Polignac number, because 1255625 - 2⁴ = 1255609 is a prime.

Its product of digits (3000) is a multiple of the sum of its prime factors (75).

It is a junction number, because it is equal to n+sod(n) for n = 1255594 and 1255603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30605 + ... + 30645.

2^1255625 is an apocalyptic number.

It is an amenable number.

1255625 is a deficient number, since it is larger than the sum of its proper divisors (614089).

1255625 is an frugal number, since it uses more digits than its factorization.

1255625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 53 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 1255625 is about 1120.5467415507. The cubic root of 1255625 is about 107.8830753336.

The spelling of 1255625 in words is "one million, two hundred fifty-five thousand, six hundred twenty-five".