55842558 has 16 divisors (see below), whose sum is σ = 117563520. Its totient is φ = 17634456.

The previous prime is 55842547. The next prime is 55842559. The reversal of 55842558 is 85524855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55842559) 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, 244810 + ... + 245037.

It is an arithmetic number, because the mean of its divisors is an integer number (7347720).

Almost surely, 2^55842558 is an apocalyptic number.

55842558 is an abundant number, since it is smaller than the sum of its proper divisors (61720962).

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

55842558 is a wasteful number, since it uses less digits than its factorization.

55842558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489871.

The product of its digits is 320000, while the sum is 42.

The square root of 55842558 is about 7472.7878331985. The cubic root of 55842558 is about 382.2273575054.

The spelling of 55842558 in words is "fifty-five million, eight hundred forty-two thousand, five hundred fifty-eight".