1522525 has 6 divisors (see below), whose sum is σ = 1887962. Its totient is φ = 1218000.

The previous prime is 1522517. The next prime is 1522541. The reversal of 1522525 is 5252251.

It can be written as a sum of positive squares in 3 ways, for example, as 29241 + 1493284 = 171^2 + 1222^2 .

It is not a de Polignac number, because 1522525 - 2³ = 1522517 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1522496 and 1522505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30426 + ... + 30475.

2^1522525 is an apocalyptic number.

It is an amenable number.

1522525 is a deficient number, since it is larger than the sum of its proper divisors (365437).

1522525 is an equidigital number, since it uses as much as digits as its factorization.

1522525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60911 (or 60906 counting only the distinct ones).

The product of its digits is 1000, while the sum is 22.

The square root of 1522525 is about 1233.9063983950. The cubic root of 1522525 is about 115.0415728712.

Adding to 1522525 its reverse (5252251), we get a palindrome (6774776).

The spelling of 1522525 in words is "one million, five hundred twenty-two thousand, five hundred twenty-five".