55851120 has 360 divisors, whose sum is σ = 223016976. Its totient is φ = 12939264.

The previous prime is 55851113. The next prime is 55851121. The reversal of 55851120 is 2115855.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55851121) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 3285352 + ... + 3285368.

Almost surely, 2^55851120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55851120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111508488).

55851120 is an abundant number, since it is smaller than the sum of its proper divisors (167165856).

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

55851120 is a wasteful number, since it uses less digits than its factorization.

55851120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 55851120 is about 7473.3606898102. The cubic root of 55851120 is about 382.2468913730.

Adding to 55851120 its reverse (2115855), we get a palindrome (57966975).

The spelling of 55851120 in words is "fifty-five million, eight hundred fifty-one thousand, one hundred twenty".