53055220212 has 24 divisors (see below), whose sum is σ = 137550571200. Its totient is φ = 17685073368.

The previous prime is 53055220073. The next prime is 53055220213. The reversal of 53055220212 is 21202255035.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53055220213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 245625912 + ... + 245626127.

It is an arithmetic number, because the mean of its divisors is an integer number (5731273800).

Almost surely, 2^53055220212 is an apocalyptic number.

It is an amenable number.

53055220212 is an abundant number, since it is smaller than the sum of its proper divisors (84495350988).

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

53055220212 is a wasteful number, since it uses less digits than its factorization.

53055220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491252052 (or 491252044 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 53055220212 its reverse (21202255035), we get a palindrome (74257475247).

The spelling of 53055220212 in words is "fifty-three billion, fifty-five million, two hundred twenty thousand, two hundred twelve".