52345812 has 48 divisors (see below), whose sum is σ = 127008000. Its totient is φ = 16759680.

The previous prime is 52345801. The next prime is 52345819. The reversal of 52345812 is 21854325.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52345812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52345819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121237 + ... + 121667.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^52345812 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 52345812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63504000).

52345812 is an abundant number, since it is smaller than the sum of its proper divisors (74662188).

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

52345812 is a wasteful number, since it uses less digits than its factorization.

52345812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 814 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 52345812 is about 7235.0405665760. The cubic root of 52345812 is about 374.0766903081.

The spelling of 52345812 in words is "fifty-two million, three hundred forty-five thousand, eight hundred twelve".