1525025 has 6 divisors (see below), whose sum is σ = 1891062. Its totient is φ = 1220000.

The previous prime is 1525021. The next prime is 1525031. The reversal of 1525025 is 5205251.

It can be written as a sum of positive squares in 3 ways, for example, as 160801 + 1364224 = 401^2 + 1168^2 .

It is not a de Polignac number, because 1525025 - 2² = 1525021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1524988 and 1525006.

It is not an unprimeable number, because it can be changed into a prime (1525021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30476 + ... + 30525.

It is an arithmetic number, because the mean of its divisors is an integer number (315177).

2^1525025 is an apocalyptic number.

It is an amenable number.

1525025 is a deficient number, since it is larger than the sum of its proper divisors (366037).

1525025 is an equidigital number, since it uses as much as digits as its factorization.

1525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61011 (or 61006 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 1525025 is about 1234.9190256855. The cubic root of 1525025 is about 115.1045048776.

The spelling of 1525025 in words is "one million, five hundred twenty-five thousand, twenty-five".