55989143100 has 108 divisors (see below), whose sum is σ = 191448970440. Its totient is φ = 13573123200.

The previous prime is 55989143081. The next prime is 55989143101. The reversal of 55989143100 is 134198955.

55989143100 is a `hidden beast` number, since 5 + 598 + 9 + 1 + 43 + 10 + 0 = 666.

It is a super-2 number, since 2×55989143100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55989143101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2817835 + ... + 2837634.

Almost surely, 2^55989143100 is an apocalyptic number.

55989143100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55989143100 is an abundant number, since it is smaller than the sum of its proper divisors (135459827340).

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

55989143100 is a wasteful number, since it uses less digits than its factorization.

55989143100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655500 (or 5655490 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 55989143100 in words is "fifty-five billion, nine hundred eighty-nine million, one hundred forty-three thousand, one hundred".