55777582 has 12 divisors (see below), whose sum is σ = 97326360. Its totient is φ = 23904636.

The previous prime is 55777549. The next prime is 55777609. The reversal of 55777582 is 28577755.

55777582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55777582² = 6222277307533448, which contains 22 as substring.

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 in 5 ways as a sum of consecutive naturals, for example, 284482 + ... + 284677.

It is an arithmetic number, because the mean of its divisors is an integer number (8110530).

Almost surely, 2^55777582 is an apocalyptic number.

55777582 is a deficient number, since it is larger than the sum of its proper divisors (41548778).

55777582 is a wasteful number, since it uses less digits than its factorization.

55777582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569175 (or 569168 counting only the distinct ones).

The product of its digits is 686000, while the sum is 46.

The square root of 55777582 is about 7468.4390604731. The cubic root of 55777582 is about 382.0790521958.

The spelling of 55777582 in words is "fifty-five million, seven hundred seventy-seven thousand, five hundred eighty-two".