55787044 has 6 divisors (see below), whose sum is σ = 97627334. Its totient is φ = 27893520.

The previous prime is 55787041. The next prime is 55787087. The reversal of 55787044 is 44078755.

55787044 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., 50552100 + 5234944 = 7110^2 + 2288^2 .

It is a super-2 number, since 2×55787044² = 6224388556515872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55786988 and 55787006.

It is not an unprimeable number, because it can be changed into a prime (55787041) by changing a digit.

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, 6973377 + ... + 6973384.

Almost surely, 2^55787044 is an apocalyptic number.

It is an amenable number.

55787044 is a deficient number, since it is larger than the sum of its proper divisors (41840290).

55787044 is a wasteful number, since it uses less digits than its factorization.

55787044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13946765 (or 13946763 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 55787044 is about 7469.0724993134. The cubic root of 55787044 is about 382.1006560221.

The spelling of 55787044 in words is "fifty-five million, seven hundred eighty-seven thousand, forty-four".