55065700 has 18 divisors (see below), whose sum is σ = 119492786. Its totient is φ = 22026240.

The previous prime is 55065697. The next prime is 55065701. The reversal of 55065700 is 756055.

It can be written as a sum of positive squares in 3 ways, for example, as 68644 + 54997056 = 262^2 + 7416^2 .

It is a super-3 number, since 3×55065700³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (55065701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275229 + ... + 275428.

Almost surely, 2^55065700 is an apocalyptic number.

55065700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55065700 is an abundant number, since it is smaller than the sum of its proper divisors (64427086).

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

55065700 is a wasteful number, since it uses less digits than its factorization.

55065700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550671 (or 550664 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55065700 is about 7420.6266581738. The cubic root of 55065700 is about 380.4466124733.

The spelling of 55065700 in words is "fifty-five million, sixty-five thousand, seven hundred".