52381672 has 64 divisors (see below), whose sum is σ = 119070720. Its totient is φ = 21117888.

The previous prime is 52381657. The next prime is 52381673. The reversal of 52381672 is 27618325.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (52381673) 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, 85993 + ... + 86599.

It is an arithmetic number, because the mean of its divisors is an integer number (1860480).

Almost surely, 2^52381672 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 52381672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59535360).

52381672 is an abundant number, since it is smaller than the sum of its proper divisors (66689048).

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

52381672 is a wasteful number, since it uses less digits than its factorization.

52381672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 706 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 52381672 is about 7237.5183592168. The cubic root of 52381672 is about 374.1620924161.

Adding to 52381672 its reverse (27618325), we get a palindrome (79999997).

The spelling of 52381672 in words is "fifty-two million, three hundred eighty-one thousand, six hundred seventy-two".