1825182500 has 90 divisors (see below), whose sum is σ = 4076271738. Its totient is φ = 714816000.

The previous prime is 1825182493. The next prime is 1825182511. The reversal of 1825182500 is 52815281.

It is a happy number.

It can be written as a sum of positive squares in 15 ways, for example, as 1737722596 + 87459904 = 41686^2 + 9352^2 .

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 13322432 + ... + 13322568.

Almost surely, 2^1825182500 is an apocalyptic number.

1825182500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1825182500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2038135869).

1825182500 is an abundant number, since it is smaller than the sum of its proper divisors (2251089238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1825182500 is an equidigital number, since it uses as much as digits as its factorization.

1825182500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 1825182500 is about 42722.1546741266. The cubic root of 1825182500 is about 1222.0869279381.

Adding to 1825182500 its reverse (52815281), we get a palindrome (1877997781).

It can be divided in two parts, 1825 and 182500, that multiplied together give a square (333062500 = 18250²).

The spelling of 1825182500 in words is "one billion, eight hundred twenty-five million, one hundred eighty-two thousand, five hundred".