55236113 has 4 divisors (see below), whose sum is σ = 55330800. Its totient is φ = 55141428.

The previous prime is 55236109. The next prime is 55236121. The reversal of 55236113 is 31163255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55236113 - 2² = 55236109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55236163) 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, 46463 + ... + 47636.

It is an arithmetic number, because the mean of its divisors is an integer number (13832700).

Almost surely, 2^55236113 is an apocalyptic number.

It is an amenable number.

55236113 is a deficient number, since it is larger than the sum of its proper divisors (94687).

55236113 is an equidigital number, since it uses as much as digits as its factorization.

55236113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94686.

The product of its digits is 2700, while the sum is 26.

The square root of 55236113 is about 7432.1001742442. The cubic root of 55236113 is about 380.8386670750.

Adding to 55236113 its reverse (31163255), we get a palindrome (86399368).

The spelling of 55236113 in words is "fifty-five million, two hundred thirty-six thousand, one hundred thirteen".