52416820 has 48 divisors (see below), whose sum is σ = 116524800. Its totient is φ = 19751040.

The previous prime is 52416811. The next prime is 52416823. The reversal of 52416820 is 2861425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52416823) 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, 102726 + ... + 103234.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^52416820 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 52416820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58262400).

52416820 is an abundant number, since it is smaller than the sum of its proper divisors (64107980).

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

52416820 is a wasteful number, since it uses less digits than its factorization.

52416820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 52416820 is about 7239.9461323963. The cubic root of 52416820 is about 374.2457610504.

The spelling of 52416820 in words is "fifty-two million, four hundred sixteen thousand, eight hundred twenty".