55436 has 6 divisors (see below), whose sum is σ = 97020. Its totient is φ = 27716.

The previous prime is 55411. The next prime is 55439. The reversal of 55436 is 63455.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55436.

It is not an unprimeable number, because it can be changed into a prime (55439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6926 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2⁵⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

55436 is a deficient number, since it is larger than the sum of its proper divisors (41584).

55436 is a wasteful number, since it uses less digits than its factorization.

55436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13863 (or 13861 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 55436 is about 235.4485081711. The cubic root of 55436 is about 38.1297503711.

The spelling of 55436 in words is "fifty-five thousand, four hundred thirty-six".