55065408 has 56 divisors (see below), whose sum is σ = 148193760. Its totient is φ = 18040320.

The previous prime is 55065407. The next prime is 55065421. The reversal of 55065408 is 80456055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8898 + ... + 13758.

Almost surely, 2^55065408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55065408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74096880).

55065408 is an abundant number, since it is smaller than the sum of its proper divisors (93128352).

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

55065408 is a wasteful number, since it uses less digits than its factorization.

55065408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935 (or 4925 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 55065408 is about 7420.6069832595. The cubic root of 55065408 is about 380.4459400002.

The spelling of 55065408 in words is "fifty-five million, sixty-five thousand, four hundred eight".