53550012 has 24 divisors (see below), whose sum is σ = 125865936. Its totient is φ = 17719168.

The previous prime is 53550011. The next prime is 53550041. The reversal of 53550012 is 21005535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53550011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14643 + ... + 17930.

It is an arithmetic number, because the mean of its divisors is an integer number (5244414).

Almost surely, 2^53550012 is an apocalyptic number.

It is an amenable number.

53550012 is an abundant number, since it is smaller than the sum of its proper divisors (72315924).

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

53550012 is a wasteful number, since it uses less digits than its factorization.

53550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32717 (or 32715 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 53550012 is about 7317.7873705103. The cubic root of 53550012 is about 376.9234788535.

Adding to 53550012 its reverse (21005535), we get a palindrome (74555547).

The spelling of 53550012 in words is "fifty-three million, five hundred fifty thousand, twelve".