55016830 has 16 divisors (see below), whose sum is σ = 108033264. Its totient is φ = 20006080.

The previous prime is 55016827. The next prime is 55016839. The reversal of 55016830 is 3861055.

It is a super-3 number, since 3×55016830³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55016839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249967 + ... + 250186.

It is an arithmetic number, because the mean of its divisors is an integer number (6752079).

Almost surely, 2^55016830 is an apocalyptic number.

55016830 is a deficient number, since it is larger than the sum of its proper divisors (53016434).

55016830 is a wasteful number, since it uses less digits than its factorization.

55016830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500171.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 55016830 is about 7417.3330786746. Note that the first 3 decimals coincide. The cubic root of 55016830 is about 380.3340322353.

Adding to 55016830 its reverse (3861055), we get a palindrome (58877885).

The spelling of 55016830 in words is "fifty-five million, sixteen thousand, eight hundred thirty".