1523525 has 12 divisors (see below), whose sum is σ = 1906500. Its totient is φ = 1207680.

The previous prime is 1523521. The next prime is 1523527. The reversal of 1523525 is 5253251.

It can be written as a sum of positive squares in 6 ways, for example, as 20449 + 1503076 = 143^2 + 1226^2 .

It is not a de Polignac number, because 1523525 - 2² = 1523521 is a prime.

It is a super-2 number, since 2×1523525² = 4642256851250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1523525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1523521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3521 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (158875).

2^1523525 is an apocalyptic number.

It is an amenable number.

1523525 is a deficient number, since it is larger than the sum of its proper divisors (382975).

1523525 is a wasteful number, since it uses less digits than its factorization.

1523525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 563 counting only the distinct ones).

The product of its digits is 1500, while the sum is 23.

The square root of 1523525 is about 1234.3115490021. The cubic root of 1523525 is about 115.0667539345.

Adding to 1523525 its reverse (5253251), we get a palindrome (6776776).

It can be divided in two parts, 1523 and 525, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1523525 in words is "one million, five hundred twenty-three thousand, five hundred twenty-five".