55308197200 has 60 divisors (see below), whose sum is σ = 134247913660. Its totient is φ = 21895188480.

The previous prime is 55308197167. The next prime is 55308197209. The reversal of 55308197200 is 279180355.

It can be written as a sum of positive squares in 6 ways, for example, as 446224 + 55307750976 = 668^2 + 235176^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55308197209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673935 + ... + 751534.

Almost surely, 2^55308197200 is an apocalyptic number.

55308197200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55308197200 is an abundant number, since it is smaller than the sum of its proper divisors (78939716460).

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

55308197200 is a wasteful number, since it uses less digits than its factorization.

55308197200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425584 (or 1425573 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 55308197200 in words is "fifty-five billion, three hundred eight million, one hundred ninety-seven thousand, two hundred".