55707800 has 48 divisors (see below), whose sum is σ = 131743800. Its totient is φ = 21900800.

The previous prime is 55707787. The next prime is 55707803. The reversal of 55707800 is 870755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55707803) 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, 9440 + ... + 14160.

Almost surely, 2^55707800 is an apocalyptic number.

55707800 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 55707800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65871900).

55707800 is an abundant number, since it is smaller than the sum of its proper divisors (76036000).

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

55707800 is a wasteful number, since it uses less digits than its factorization.

55707800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796 (or 4787 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 55707800 is about 7463.7658055435. The cubic root of 55707800 is about 381.9196490448.

The spelling of 55707800 in words is "fifty-five million, seven hundred seven thousand, eight hundred".