1600625 has 20 divisors (see below), whose sum is σ = 2164932. Its totient is φ = 1176000.

The previous prime is 1600607. The next prime is 1600631. The reversal of 1600625 is 5260061.

It can be written as a sum of positive squares in 10 ways, for example, as 1048576 + 552049 = 1024^2 + 743^2 .

It is a sliding number, since 1600625 = 625 + 1600000 and 1/625 + 1/1600000 = 0.001600625.

It is not a de Polignac number, because 1600625 - 2¹⁰ = 1599601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1600597 and 1600606.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8027 + ... + 8223.

2^1600625 is an apocalyptic number.

It is an amenable number.

1600625 is a deficient number, since it is larger than the sum of its proper divisors (564307).

1600625 is an equidigital number, since it uses as much as digits as its factorization.

1600625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1600625 is about 1265.1580928880. The cubic root of 1600625 is about 116.9759368050.

Adding to 1600625 its reverse (5260061), we get a palindrome (6860686).

It can be divided in two parts, 1600 and 625, that multiplied together give a 6-th power (1000000 = 10⁶).

The spelling of 1600625 in words is "one million, six hundred thousand, six hundred twenty-five".