55512784 has 10 divisors (see below), whose sum is σ = 107556050. Its totient is φ = 27756384.

The previous prime is 55512761. The next prime is 55512797. The reversal of 55512784 is 48721555.

55512784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54346384 + 1166400 = 7372^2 + 1080^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1734759 + ... + 1734790.

It is an arithmetic number, because the mean of its divisors is an integer number (10755605).

Almost surely, 2^55512784 is an apocalyptic number.

It is an amenable number.

55512784 is a deficient number, since it is larger than the sum of its proper divisors (52043266).

55512784 is a wasteful number, since it uses less digits than its factorization.

55512784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469557 (or 3469551 counting only the distinct ones).

The product of its digits is 56000, while the sum is 37.

The square root of 55512784 is about 7450.6901693736. The cubic root of 55512784 is about 381.4734666263.

The spelling of 55512784 in words is "fifty-five million, five hundred twelve thousand, seven hundred eighty-four".