3990055525 has 12 divisors (see below), whose sum is σ = 5162785632. Its totient is φ = 3053259440.

The previous prime is 3990055523. The next prime is 3990055547. The reversal of 3990055525 is 5255500993.

It is not a de Polignac number, because 3990055525 - 2¹ = 3990055523 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 (3990055523) 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 11 ways as a sum of consecutive naturals, for example, 3469039 + ... + 3470188.

It is an arithmetic number, because the mean of its divisors is an integer number (430232136).

Almost surely, 2^3990055525 is an apocalyptic number.

It is an amenable number.

3990055525 is a deficient number, since it is larger than the sum of its proper divisors (1172730107).

3990055525 is a wasteful number, since it uses less digits than its factorization.

3990055525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6939260 (or 6939255 counting only the distinct ones).

The product of its (nonzero) digits is 303750, while the sum is 43.

The square root of 3990055525 is about 63166.8863012892. The cubic root of 3990055525 is about 1586.0844711329.

The spelling of 3990055525 in words is "three billion, nine hundred ninety million, fifty-five thousand, five hundred twenty-five".