55755784 has 32 divisors (see below), whose sum is σ = 126506880. Its totient is φ = 22489344.

The previous prime is 55755773. The next prime is 55755787. The reversal of 55755784 is 48755755.

It is not an unprimeable number, because it can be changed into a prime (55755787) 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, 28332 + ... + 30235.

It is an arithmetic number, because the mean of its divisors is an integer number (3953340).

Almost surely, 2^55755784 is an apocalyptic number.

It is an amenable number.

55755784 is an abundant number, since it is smaller than the sum of its proper divisors (70751096).

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

55755784 is a wasteful number, since it uses less digits than its factorization.

55755784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58597 (or 58593 counting only the distinct ones).

The product of its digits is 980000, while the sum is 46.

The square root of 55755784 is about 7466.9795767767. The cubic root of 55755784 is about 382.0292732700.

The spelling of 55755784 in words is "fifty-five million, seven hundred fifty-five thousand, seven hundred eighty-four".