1522825 has 6 divisors (see below), whose sum is σ = 1888334. Its totient is φ = 1218240.

The previous prime is 1522811. The next prime is 1522837. The reversal of 1522825 is 5282251.

It can be written as a sum of positive squares in 3 ways, for example, as 24649 + 1498176 = 157^2 + 1224^2 .

It is not a de Polignac number, because 1522825 - 2¹¹ = 1520777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 60913 = 1522825 / (1 + 5 + 2 + 2 + 8 + 2 + 5).

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 1522825.

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 5 ways as a sum of consecutive naturals, for example, 30432 + ... + 30481.

2^1522825 is an apocalyptic number.

It is an amenable number.

1522825 is a deficient number, since it is larger than the sum of its proper divisors (365509).

1522825 is an equidigital number, since it uses as much as digits as its factorization.

1522825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60923 (or 60918 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 1522825 is about 1234.0279575439. The cubic root of 1522825 is about 115.0491283476.

The spelling of 1522825 in words is "one million, five hundred twenty-two thousand, eight hundred twenty-five".