55116424 has 16 divisors (see below), whose sum is σ = 112738320. Its totient is φ = 25052880.

The previous prime is 55116401. The next prime is 55116437. The reversal of 55116424 is 42461155.

It is a junction number, because it is equal to n+sod(n) for n = 55116392 and 55116401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313074 + ... + 313249.

It is an arithmetic number, because the mean of its divisors is an integer number (7046145).

Almost surely, 2^55116424 is an apocalyptic number.

It is an amenable number.

55116424 is an abundant number, since it is smaller than the sum of its proper divisors (57621896).

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

55116424 is a wasteful number, since it uses less digits than its factorization.

55116424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626340 (or 626336 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 55116424 is about 7424.0436421131. The cubic root of 55116424 is about 380.5633932860.

Adding to 55116424 its reverse (42461155), we get a palindrome (97577579).

It can be divided in two parts, 5511 and 6424, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 55116424 in words is "fifty-five million, one hundred sixteen thousand, four hundred twenty-four".