53043012 has 144 divisors (see below), whose sum is σ = 156671424. Its totient is φ = 15681600.

The previous prime is 53042993. The next prime is 53043019. The reversal of 53043012 is 21034035.

53043012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53043012² = 5627122244064288, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (53043019) 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 47 ways as a sum of consecutive naturals, for example, 1293712 + ... + 1293752.

It is an arithmetic number, because the mean of its divisors is an integer number (1087996).

Almost surely, 2^53043012 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 53043012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78335712).

53043012 is an abundant number, since it is smaller than the sum of its proper divisors (103628412).

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

53043012 is a wasteful number, since it uses less digits than its factorization.

53043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 53043012 is about 7283.0633664688. The cubic root of 53043012 is about 375.7301613822.

Adding to 53043012 its reverse (21034035), we get a palindrome (74077047).

The spelling of 53043012 in words is "fifty-three million, forty-three thousand, twelve".