1804525085 has 16 divisors (see below), whose sum is σ = 2385683712. Its totient is φ = 1299384000.

The previous prime is 1804525081. The next prime is 1804525111. The reversal of 1804525085 is 5805254081.

It is not a de Polignac number, because 1804525085 - 2² = 1804525081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804525081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156869 + ... + 167978.

It is an arithmetic number, because the mean of its divisors is an integer number (149105232).

Almost surely, 2^1804525085 is an apocalyptic number.

It is an amenable number.

1804525085 is a deficient number, since it is larger than the sum of its proper divisors (581158627).

1804525085 is a wasteful number, since it uses less digits than its factorization.

1804525085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324964.

The product of its (nonzero) digits is 64000, while the sum is 38.

The square root of 1804525085 is about 42479.7020352074. The cubic root of 1804525085 is about 1217.4588972599.

The spelling of 1804525085 in words is "one billion, eight hundred four million, five hundred twenty-five thousand, eighty-five".