55678842 has 24 divisors (see below), whose sum is σ = 127734516. Its totient is φ = 17467776.

The previous prime is 55678823. The next prime is 55678849. The reversal of 55678842 is 24887655.

55678842 is a `hidden beast` number, since 5 + 567 + 8 + 84 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55666521 + 12321 = 7461^2 + 111^2 .

It is not an unprimeable number, because it can be changed into a prime (55678849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90673 + ... + 91284.

Almost surely, 2^55678842 is an apocalyptic number.

55678842 is an abundant number, since it is smaller than the sum of its proper divisors (72055674).

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

55678842 is a wasteful number, since it uses less digits than its factorization.

55678842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181982 (or 181979 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 55678842 is about 7461.8256479229. The cubic root of 55678842 is about 381.8534611496.

The spelling of 55678842 in words is "fifty-five million, six hundred seventy-eight thousand, eight hundred forty-two".