52422012 has 24 divisors (see below), whose sum is σ = 135909200. Its totient is φ = 17473968.

The previous prime is 52421987. The next prime is 52422017. The reversal of 52422012 is 21022425.

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 (52422017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242587 + ... + 242802.

Almost surely, 2^52422012 is an apocalyptic number.

It is an amenable number.

52422012 is an abundant number, since it is smaller than the sum of its proper divisors (83487188).

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

52422012 is a wasteful number, since it uses less digits than its factorization.

52422012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485402 (or 485394 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 52422012 is about 7240.3046897213. The cubic root of 52422012 is about 374.2581172612.

Adding to 52422012 its reverse (21022425), we get a palindrome (73444437).

The spelling of 52422012 in words is "fifty-two million, four hundred twenty-two thousand, twelve".