53322012 has 18 divisors (see below), whose sum is σ = 134786288. Its totient is φ = 17773992.

The previous prime is 53322007. The next prime is 53322019. The reversal of 53322012 is 21022335.

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 not an unprimeable number, because it can be changed into a prime (53322019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740548 + ... + 740619.

Almost surely, 2^53322012 is an apocalyptic number.

It is an amenable number.

53322012 is an abundant number, since it is smaller than the sum of its proper divisors (81464276).

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

53322012 is a wasteful number, since it uses less digits than its factorization.

53322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481177 (or 1481172 counting only the distinct ones).

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

The square root of 53322012 is about 7302.1922735573. The cubic root of 53322012 is about 376.3877752112.

Adding to 53322012 its reverse (21022335), we get a palindrome (74344347).

The spelling of 53322012 in words is "fifty-three million, three hundred twenty-two thousand, twelve".