55115400200 has 48 divisors (see below), whose sum is σ = 146449495680. Its totient is φ = 18896708160.

The previous prime is 55115400187. The next prime is 55115400229. The reversal of 55115400200 is 200451155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19682672 + ... + 19685471.

It is an arithmetic number, because the mean of its divisors is an integer number (3051031160).

Almost surely, 2^55115400200 is an apocalyptic number.

55115400200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55115400200 is an abundant number, since it is smaller than the sum of its proper divisors (91334095480).

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

55115400200 is a wasteful number, since it uses less digits than its factorization.

55115400200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39368166 (or 39368157 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 55115400200 its reverse (200451155), we get a palindrome (55315851355).

The spelling of 55115400200 in words is "fifty-five billion, one hundred fifteen million, four hundred thousand, two hundred".