55119636 has 192 divisors, whose sum is σ = 173859840. Its totient is φ = 14878080.

The previous prime is 55119611. The next prime is 55119637. The reversal of 55119636 is 63691155.

55119636 is a `hidden beast` number, since 5 + 5 + 1 + 19 + 636 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55119636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55119637) 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 63 ways as a sum of consecutive naturals, for example, 664051 + ... + 664133.

It is an arithmetic number, because the mean of its divisors is an integer number (905520).

Almost surely, 2^55119636 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 55119636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86929920).

55119636 is an abundant number, since it is smaller than the sum of its proper divisors (118740204).

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

55119636 is a wasteful number, since it uses less digits than its factorization.

55119636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 55119636 is about 7424.2599631209. The cubic root of 55119636 is about 380.5707857944.

It can be divided in two parts, 55119 and 636, that added together give a palindrome (55755).

The spelling of 55119636 in words is "fifty-five million, one hundred nineteen thousand, six hundred thirty-six".