55822638 has 8 divisors (see below), whose sum is σ = 111645288. Its totient is φ = 18607544.

The previous prime is 55822619. The next prime is 55822639. The reversal of 55822638 is 83622855.

It is a sphenic number, since it is the product of 3 distinct primes.

55822638 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55822596 and 55822605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55822639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4651881 + ... + 4651892.

It is an arithmetic number, because the mean of its divisors is an integer number (13955661).

Almost surely, 2^55822638 is an apocalyptic number.

55822638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55822638 is a wasteful number, since it uses less digits than its factorization.

55822638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303778.

The product of its digits is 115200, while the sum is 39.

The square root of 55822638 is about 7471.4548784022. The cubic root of 55822638 is about 382.1819030781.

The spelling of 55822638 in words is "fifty-five million, eight hundred twenty-two thousand, six hundred thirty-eight".