1825537 has 4 divisors (see below), whose sum is σ = 2086336. Its totient is φ = 1564740.

The previous prime is 1825531. The next prime is 1825553. The reversal of 1825537 is 7355281.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1825537 - 2¹¹ = 1823489 is a prime.

1825537 is a lucky number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1825499 and 1825508.

It is not an unprimeable number, because it can be changed into a prime (1825531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 130389 + ... + 130402.

It is an arithmetic number, because the mean of its divisors is an integer number (521584).

2^1825537 is an apocalyptic number.

It is an amenable number.

1825537 is a deficient number, since it is larger than the sum of its proper divisors (260799).

1825537 is an equidigital number, since it uses as much as digits as its factorization.

1825537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260798.

The product of its digits is 8400, while the sum is 31.

The square root of 1825537 is about 1351.1243466091. The cubic root of 1825537 is about 122.2166043638.

The spelling of 1825537 in words is "one million, eight hundred twenty-five thousand, five hundred thirty-seven".