1825525297 has 4 divisors (see below), whose sum is σ = 1932909156. Its totient is φ = 1718141440.

The previous prime is 1825525291. The next prime is 1825525319. The reversal of 1825525297 is 7925255281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1662682176 + 162843121 = 40776^2 + 12761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1825525297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825525291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53691904 + ... + 53691937.

It is an arithmetic number, because the mean of its divisors is an integer number (483227289).

Almost surely, 2^1825525297 is an apocalyptic number.

1825525297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1825525297 is a deficient number, since it is larger than the sum of its proper divisors (107383859).

1825525297 is a wasteful number, since it uses less digits than its factorization.

1825525297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107383858.

The product of its digits is 504000, while the sum is 46.

The square root of 1825525297 is about 42726.1664205906. The cubic root of 1825525297 is about 1222.1634319787.

The spelling of 1825525297 in words is "one billion, eight hundred twenty-five million, five hundred twenty-five thousand, two hundred ninety-seven".