1563125 has 20 divisors (see below), whose sum is σ = 2033724. Its totient is φ = 1200000.

The previous prime is 1563119. The next prime is 1563131. The reversal of 1563125 is 5213651.

1563125 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (1563119) and next prime (1563131).

It can be written as a sum of positive squares in 10 ways, for example, as 1552516 + 10609 = 1246^2 + 103^2 .

It is not a de Polignac number, because 1563125 - 2⁴ = 1563109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1563125.

It is a congruent number.

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, 25595 + ... + 25655.

2^1563125 is an apocalyptic number.

It is an amenable number.

1563125 is a deficient number, since it is larger than the sum of its proper divisors (470599).

1563125 is an frugal number, since it uses more digits than its factorization.

1563125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 107 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 1563125 is about 1250.2499750050. The cubic root of 1563125 is about 116.0551907406.

Adding to 1563125 its reverse (5213651), we get a palindrome (6776776).

The spelling of 1563125 in words is "one million, five hundred sixty-three thousand, one hundred twenty-five".