55073800 has 48 divisors (see below), whose sum is σ = 128535300. Its totient is φ = 21945600.

The previous prime is 55073773. The next prime is 55073803. The reversal of 55073800 is 837055.

It can be written as a sum of positive squares in 6 ways, for example, as 26193924 + 28879876 = 5118^2 + 5374^2 .

It is not an unprimeable number, because it can be changed into a prime (55073803) 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, 101530 + ... + 102070.

Almost surely, 2^55073800 is an apocalyptic number.

55073800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55073800 is an abundant number, since it is smaller than the sum of its proper divisors (73461500).

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

55073800 is a wasteful number, since it uses less digits than its factorization.

55073800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55073800 is about 7421.1724141136. The cubic root of 55073800 is about 380.4652657455.

The spelling of 55073800 in words is "fifty-five million, seventy-three thousand, eight hundred".