55014440 has 64 divisors (see below), whose sum is σ = 136200960. Its totient is φ = 19872000.

The previous prime is 55014439. The next prime is 55014511. The reversal of 55014440 is 4441055.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23315 + ... + 25565.

It is an arithmetic number, because the mean of its divisors is an integer number (2128140).

Almost surely, 2^55014440 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 55014440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68100480).

55014440 is an abundant number, since it is smaller than the sum of its proper divisors (81186520).

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

55014440 is a wasteful number, since it uses less digits than its factorization.

55014440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 55014440 is about 7417.1719678055. The cubic root of 55014440 is about 380.3285247600.

Adding to 55014440 its reverse (4441055), we get a palindrome (59455495).

The spelling of 55014440 in words is "fifty-five million, fourteen thousand, four hundred forty".