3855521803 has 8 divisors (see below), whose sum is σ = 4418319872. Its totient is φ = 3295726056.

The previous prime is 3855521779. The next prime is 3855521827. The reversal of 3855521803 is 3081255583.

It is a happy number.

3855521803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3855521779) and next prime (3855521827).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3855521803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3855521833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747825 + ... + 752962.

It is an arithmetic number, because the mean of its divisors is an integer number (552289984).

Almost surely, 2^3855521803 is an apocalyptic number.

3855521803 is a deficient number, since it is larger than the sum of its proper divisors (562798069).

3855521803 is a wasteful number, since it uses less digits than its factorization.

3855521803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501161.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 3855521803 is about 62092.8482435779. The cubic root of 3855521803 is about 1568.0541437283.

The spelling of 3855521803 in words is "three billion, eight hundred fifty-five million, five hundred twenty-one thousand, eight hundred three".