55320245200 has 240 divisors, whose sum is σ = 147277662912. Its totient is φ = 19801600000.

The previous prime is 55320245153. The next prime is 55320245263. The reversal of 55320245200 is 254202355.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124876179 + ... + 124876621.

Almost surely, 2^55320245200 is an apocalyptic number.

55320245200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55320245200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73638831456).

55320245200 is an abundant number, since it is smaller than the sum of its proper divisors (91957417712).

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

55320245200 is a wasteful number, since it uses less digits than its factorization.

55320245200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 55320245200 its reverse (254202355), we get a palindrome (55574447555).

The spelling of 55320245200 in words is "fifty-five billion, three hundred twenty million, two hundred forty-five thousand, two hundred".