55012343100 has 288 divisors, whose sum is σ = 187649822976. Its totient is φ = 12267417600.

The previous prime is 55012343083. The next prime is 55012343129. The reversal of 55012343100 is 134321055.

It is a super-2 number, since 2×55012343100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13168212 + ... + 13172388.

Almost surely, 2^55012343100 is an apocalyptic number.

55012343100 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 55012343100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93824911488).

55012343100 is an abundant number, since it is smaller than the sum of its proper divisors (132637479876).

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

55012343100 is a wasteful number, since it uses less digits than its factorization.

55012343100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525 (or 4518 counting only the distinct ones).

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

Adding to 55012343100 its reverse (134321055), we get a palindrome (55146664155).

The spelling of 55012343100 in words is "fifty-five billion, twelve million, three hundred forty-three thousand, one hundred".