52272820 has 48 divisors (see below), whose sum is σ = 115315200. Its totient is φ = 19877760.

The previous prime is 52272793. The next prime is 52272863. The reversal of 52272820 is 2827225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35866 + ... + 37294.

It is an arithmetic number, because the mean of its divisors is an integer number (2402400).

Almost surely, 2^52272820 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 52272820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57657600).

52272820 is an abundant number, since it is smaller than the sum of its proper divisors (63042380).

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

52272820 is a wasteful number, since it uses less digits than its factorization.

52272820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 52272820 is about 7229.9944674944. The cubic root of 52272820 is about 373.9027362009.

The spelling of 52272820 in words is "fifty-two million, two hundred seventy-two thousand, eight hundred twenty".