1530025 has 18 divisors (see below), whose sum is σ = 2208750. Its totient is φ = 1048320.

The previous prime is 1530019. The next prime is 1530037. The reversal of 1530025 is 5200351.

1530025 = T₂₂₅ + T₂₂₆ + ... + T₂₇₃.

It can be written as a sum of positive squares in 3 ways, for example, as 63504 + 1466521 = 252^2 + 1211^2 .

It is not a de Polignac number, because 1530025 - 2⁹ = 1529513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1529990 and 1530008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 601 + ... + 1849.

2^1530025 is an apocalyptic number.

It is an amenable number.

1530025 is a deficient number, since it is larger than the sum of its proper divisors (678725).

1530025 is a wasteful number, since it uses less digits than its factorization.

1530025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1261 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1530025 is about 1236.9417932951. The cubic root of 1530025 is about 115.2301628595.

Adding to 1530025 its reverse (5200351), we get a palindrome (6730376).

The spelling of 1530025 in words is "one million, five hundred thirty thousand, twenty-five".