55856130 has 64 divisors (see below), whose sum is σ = 147166848. Its totient is φ = 13455360.

The previous prime is 55856113. The next prime is 55856147. The reversal of 55856130 is 3165855.

It is an interprime number because it is at equal distance from previous prime (55856113) and next prime (55856147).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55856091 and 55856100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63252 + ... + 64128.

It is an arithmetic number, because the mean of its divisors is an integer number (2299482).

Almost surely, 2^55856130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55856130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73583424).

55856130 is an abundant number, since it is smaller than the sum of its proper divisors (91310718).

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

55856130 is a wasteful number, since it uses less digits than its factorization.

55856130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55856130 is about 7473.6958728597. The cubic root of 55856130 is about 382.2583205658.

The spelling of 55856130 in words is "fifty-five million, eight hundred fifty-six thousand, one hundred thirty".