55303660 has 12 divisors (see below), whose sum is σ = 116137728. Its totient is φ = 22121456.

The previous prime is 55303649. The next prime is 55303663. The reversal of 55303660 is 6630355.

It is not an unprimeable number, because it can be changed into a prime (55303663) 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, 1382572 + ... + 1382611.

It is an arithmetic number, because the mean of its divisors is an integer number (9678144).

Almost surely, 2^55303660 is an apocalyptic number.

It is an amenable number.

55303660 is an abundant number, since it is smaller than the sum of its proper divisors (60834068).

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

55303660 is a wasteful number, since it uses less digits than its factorization.

55303660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765192 (or 2765190 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 55303660 is about 7436.6430598759. The cubic root of 55303660 is about 380.9938435178.

The spelling of 55303660 in words is "fifty-five million, three hundred three thousand, six hundred sixty".