54515221300 has 36 divisors (see below), whose sum is σ = 118325200140. Its totient is φ = 21801080320.

The previous prime is 54515221247. The next prime is 54515221307. The reversal of 54515221300 is 312251545.

It can be written as a sum of positive squares in 6 ways, for example, as 7438372516 + 47076848784 = 86246^2 + 216972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54515221307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391356 + ... + 512044.

It is an arithmetic number, because the mean of its divisors is an integer number (3286811115).

Almost surely, 2^54515221300 is an apocalyptic number.

54515221300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54515221300 is an abundant number, since it is smaller than the sum of its proper divisors (63809978840).

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

54515221300 is a wasteful number, since it uses less digits than its factorization.

54515221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125220 (or 125213 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 54515221300 its reverse (312251545), we get a palindrome (54827472845).

The spelling of 54515221300 in words is "fifty-four billion, five hundred fifteen million, two hundred twenty-one thousand, three hundred".