55240013320 has 16 divisors (see below), whose sum is σ = 124290030060. Its totient is φ = 22096005312.

The previous prime is 55240013287. The next prime is 55240013369. The reversal of 55240013320 is 2331004255.

55240013320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51136585956 + 4103427364 = 226134^2 + 64058^2 .

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, 690500127 + ... + 690500206.

Almost surely, 2^55240013320 is an apocalyptic number.

It is an amenable number.

55240013320 is an abundant number, since it is smaller than the sum of its proper divisors (69050016740).

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

55240013320 is a wasteful number, since it uses less digits than its factorization.

55240013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381000344 (or 1381000340 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 55240013320 its reverse (2331004255), we get a palindrome (57571017575).

The spelling of 55240013320 in words is "fifty-five billion, two hundred forty million, thirteen thousand, three hundred twenty".