55313230400 has 84 divisors (see below), whose sum is σ = 137144607600. Its totient is φ = 21956313600.

The previous prime is 55313230387. The next prime is 55313230411. The reversal of 55313230400 is 403231355.

It is a self number, because there is not a number n which added to its sum of digits gives 55313230400.

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, 77651 + ... + 341549.

It is an arithmetic number, because the mean of its divisors is an integer number (1632673900).

Almost surely, 2^55313230400 is an apocalyptic number.

55313230400 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 55313230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68572303800).

55313230400 is an abundant number, since it is smaller than the sum of its proper divisors (81831377200).

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

55313230400 is a wasteful number, since it uses less digits than its factorization.

55313230400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264052 (or 264037 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 55313230400 its reverse (403231355), we get a palindrome (55716461755).

The spelling of 55313230400 in words is "fifty-five billion, three hundred thirteen million, two hundred thirty thousand, four hundred".