55862856 has 96 divisors (see below), whose sum is σ = 173971200. Its totient is φ = 15863040.

The previous prime is 55862809. The next prime is 55862879. The reversal of 55862856 is 65826855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136380 + ... + 136788.

It is an arithmetic number, because the mean of its divisors is an integer number (1812200).

Almost surely, 2^55862856 is an apocalyptic number.

55862856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55862856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86985600).

55862856 is an abundant number, since it is smaller than the sum of its proper divisors (118108344).

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

55862856 is a wasteful number, since it uses less digits than its factorization.

55862856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 692 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 55862856 is about 7474.1458374854. The cubic root of 55862856 is about 382.2736633537.

The spelling of 55862856 in words is "fifty-five million, eight hundred sixty-two thousand, eight hundred fifty-six".