55785623300 has 72 divisors (see below), whose sum is σ = 132105523872. Its totient is φ = 20278656000.

The previous prime is 55785623287. The next prime is 55785623317. The reversal of 55785623300 is 332658755.

It is a super-2 number, since 2×55785623300² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4000340 + ... + 4014260.

Almost surely, 2^55785623300 is an apocalyptic number.

55785623300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55785623300 is an abundant number, since it is smaller than the sum of its proper divisors (76319900572).

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

55785623300 is a wasteful number, since it uses less digits than its factorization.

55785623300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17589 (or 17582 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 55785623300 in words is "fifty-five billion, seven hundred eighty-five million, six hundred twenty-three thousand, three hundred".