55135136 has 48 divisors (see below), whose sum is σ = 126717696. Its totient is φ = 23122176.

The previous prime is 55135133. The next prime is 55135141. The reversal of 55135136 is 63153155.

It is a junction number, because it is equal to n+sod(n) for n = 55135099 and 55135108.

It is not an unprimeable number, because it can be changed into a prime (55135133) 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 7 ways as a sum of consecutive naturals, for example, 7910 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (2639952).

Almost surely, 2^55135136 is an apocalyptic number.

55135136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55135136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63358848).

55135136 is an abundant number, since it is smaller than the sum of its proper divisors (71582560).

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

55135136 is a wasteful number, since it uses less digits than its factorization.

55135136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301 (or 5293 counting only the distinct ones).

The product of its digits is 6750, while the sum is 29.

The square root of 55135136 is about 7425.3037648301. The cubic root of 55135136 is about 380.6064554441.

The spelling of 55135136 in words is "fifty-five million, one hundred thirty-five thousand, one hundred thirty-six".