55516344 has 64 divisors (see below), whose sum is σ = 151969440. Its totient is φ = 16796160.

The previous prime is 55516343. The next prime is 55516361. The reversal of 55516344 is 44361555.

It is a super-2 number, since 2×55516344² = 6164128902252672, which contains 22 as substring.

Its product of digits (36000) is a multiple of the sum of its prime factors (3000).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516343) 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, 17574 + ... + 20490.

Almost surely, 2^55516344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55516344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75984720).

55516344 is an abundant number, since it is smaller than the sum of its proper divisors (96453096).

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

55516344 is a wasteful number, since it uses less digits than its factorization.

55516344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000 (or 2996 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 55516344 is about 7450.9290695859. The cubic root of 55516344 is about 381.4816210033.

Adding to 55516344 its reverse (44361555), we get a palindrome (99877899).

The spelling of 55516344 in words is "fifty-five million, five hundred sixteen thousand, three hundred forty-four".