53133012 has 18 divisors (see below), whose sum is σ = 134308538. Its totient is φ = 17710992.

The previous prime is 53132957. The next prime is 53133037. The reversal of 53133012 is 21033135.

It can be written as a sum of positive squares in only one way, i.e., 29746116 + 23386896 = 5454^2 + 4836^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737923 + ... + 737994.

Almost surely, 2^53133012 is an apocalyptic number.

It is an amenable number.

53133012 is an abundant number, since it is smaller than the sum of its proper divisors (81175526).

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

53133012 is a wasteful number, since it uses less digits than its factorization.

53133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475927 (or 1475922 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 53133012 is about 7289.2394665013. The cubic root of 53133012 is about 375.9425462991.

Adding to 53133012 its reverse (21033135), we get a palindrome (74166147).

The spelling of 53133012 in words is "fifty-three million, one hundred thirty-three thousand, twelve".