55016423 has 16 divisors (see below), whose sum is σ = 69209856. Its totient is φ = 42483840.

The previous prime is 55016407. The next prime is 55016441. The reversal of 55016423 is 32461055.

It is not a de Polignac number, because 55016423 - 2⁴ = 55016407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55016392 and 55016401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55016453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5540 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (4325616).

Almost surely, 2^55016423 is an apocalyptic number.

55016423 is a deficient number, since it is larger than the sum of its proper divisors (14193433).

55016423 is a wasteful number, since it uses less digits than its factorization.

55016423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 55016423 is about 7417.3056428868. The cubic root of 55016423 is about 380.3330943627. Note that the first 3 decimals are identical.

Adding to 55016423 its reverse (32461055), we get a palindrome (87477478).

The spelling of 55016423 in words is "fifty-five million, sixteen thousand, four hundred twenty-three".