55203405504 has 112 divisors (see below), whose sum is σ = 160952639232. Its totient is φ = 16590615552.

The previous prime is 55203405497. The next prime is 55203405511. The reversal of 55203405504 is 40550430255.

It is an interprime number because it is at equal distance from previous prime (55203405497) and next prime (55203405511).

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, 149844 + ... + 364499.

It is an arithmetic number, because the mean of its divisors is an integer number (1437077136).

Almost surely, 2^55203405504 is an apocalyptic number.

It is an amenable number.

55203405504 is an abundant number, since it is smaller than the sum of its proper divisors (105749233728).

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

55203405504 is a wasteful number, since it uses less digits than its factorization.

55203405504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514414 (or 514404 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 33.

Adding to 55203405504 its reverse (40550430255), we get a palindrome (95753835759).

The spelling of 55203405504 in words is "fifty-five billion, two hundred three million, four hundred five thousand, five hundred four".