55136436 has 24 divisors (see below), whose sum is σ = 130762464. Its totient is φ = 18077280.

The previous prime is 55136413. The next prime is 55136437. The reversal of 55136436 is 63463155.

It is a junction number, because it is equal to n+sod(n) for n = 55136397 and 55136406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55136437) 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, 36930 + ... + 38393.

It is an arithmetic number, because the mean of its divisors is an integer number (5448436).

Almost surely, 2^55136436 is an apocalyptic number.

It is an amenable number.

55136436 is an abundant number, since it is smaller than the sum of its proper divisors (75626028).

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

55136436 is a wasteful number, since it uses less digits than its factorization.

55136436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75391 (or 75389 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 55136436 is about 7425.3913028203. The cubic root of 55136436 is about 380.6094467883.

The spelling of 55136436 in words is "fifty-five million, one hundred thirty-six thousand, four hundred thirty-six".