3555561904 has 20 divisors (see below), whose sum is σ = 7188419376. Its totient is φ = 1700485952.

The previous prime is 3555561901. The next prime is 3555561923. The reversal of 3555561904 is 4091655553.

It is a super-2 number, since 2×3555561904² = 25284040906352210432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3555561901) 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, 4830559 + ... + 4831294.

Almost surely, 2^3555561904 is an apocalyptic number.

It is an amenable number.

3555561904 is an abundant number, since it is smaller than the sum of its proper divisors (3632857472).

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

3555561904 is a wasteful number, since it uses less digits than its factorization.

3555561904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661884 (or 9661878 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 43.

The square root of 3555561904 is about 59628.5326332956. The cubic root of 3555561904 is about 1526.2865651316.

The spelling of 3555561904 in words is "three billion, five hundred fifty-five million, five hundred sixty-one thousand, nine hundred four".