55142033100 has 288 divisors, whose sum is σ = 207562715136. Its totient is φ = 10959801600.

The previous prime is 55142033087. The next prime is 55142033131. The reversal of 55142033100 is 133024155.

It is a super-2 number, since 2×55142033100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 479407 + ... + 583193.

It is an arithmetic number, because the mean of its divisors is an integer number (720703872).

Almost surely, 2^55142033100 is an apocalyptic number.

55142033100 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 55142033100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103781357568).

55142033100 is an abundant number, since it is smaller than the sum of its proper divisors (152420682036).

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

55142033100 is a wasteful number, since it uses less digits than its factorization.

55142033100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103845 (or 103838 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 55142033100 its reverse (133024155), we get a palindrome (55275057255).

The spelling of 55142033100 in words is "fifty-five billion, one hundred forty-two million, thirty-three thousand, one hundred".