55822860 has 36 divisors (see below), whose sum is σ = 169329888. Its totient is φ = 14886048.

The previous prime is 55822843. The next prime is 55822861. The reversal of 55822860 is 6822855.

55822860 is a `hidden beast` number, since 558 + 22 + 86 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55822861) 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, 154884 + ... + 155243.

It is an arithmetic number, because the mean of its divisors is an integer number (4703608).

Almost surely, 2^55822860 is an apocalyptic number.

It is an amenable number.

55822860 is an abundant number, since it is smaller than the sum of its proper divisors (113507028).

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

55822860 is a wasteful number, since it uses less digits than its factorization.

55822860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310142 (or 310137 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 55822860 is about 7471.4697349317. The cubic root of 55822860 is about 382.1824097081.

The spelling of 55822860 in words is "fifty-five million, eight hundred twenty-two thousand, eight hundred sixty".