55503234320 has 40 divisors (see below), whose sum is σ = 129836737536. Its totient is φ = 22065084288.

The previous prime is 55503234317. The next prime is 55503234331. The reversal of 55503234320 is 2343230555.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115152 + ... + 2141231.

Almost surely, 2^55503234320 is an apocalyptic number.

It is an amenable number.

55503234320 is an abundant number, since it is smaller than the sum of its proper divisors (74333503216).

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

55503234320 is a wasteful number, since it uses less digits than its factorization.

55503234320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256559 (or 4256553 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 32.

Adding to 55503234320 its reverse (2343230555), we get a palindrome (57846464875).

The spelling of 55503234320 in words is "fifty-five billion, five hundred three million, two hundred thirty-four thousand, three hundred twenty".