55065760 has 24 divisors (see below), whose sum is σ = 130093236. Its totient is φ = 22026240.

The previous prime is 55065739. The next prime is 55065767. The reversal of 55065760 is 6756055.

It can be written as a sum of positive squares in 2 ways, for example, as 51782416 + 3283344 = 7196^2 + 1812^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55065767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171921 + ... + 172240.

Almost surely, 2^55065760 is an apocalyptic number.

It is an amenable number.

55065760 is an abundant number, since it is smaller than the sum of its proper divisors (75027476).

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

55065760 is a wasteful number, since it uses less digits than its factorization.

55065760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344176 (or 344168 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 55065760 is about 7420.6307009580. The cubic root of 55065760 is about 380.4467506524.

The spelling of 55065760 in words is "fifty-five million, sixty-five thousand, seven hundred sixty".