55000512 has 112 divisors (see below), whose sum is σ = 184830720. Its totient is φ = 15710976.

The previous prime is 55000507. The next prime is 55000513. The reversal of 55000512 is 21500055.

55000512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9823 + ... + 14369.

Almost surely, 2^55000512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92415360).

55000512 is an abundant number, since it is smaller than the sum of its proper divisors (129830208).

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

55000512 is a wasteful number, since it uses less digits than its factorization.

55000512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 55000512 is about 7416.2330060483. The cubic root of 55000512 is about 380.2964261402.

Adding to 55000512 its reverse (21500055), we get a palindrome (76500567).

The spelling of 55000512 in words is "fifty-five million, five hundred twelve", and thus it is an aban number.