52321552 has 40 divisors (see below), whose sum is σ = 107508992. Its totient is φ = 24624000.

The previous prime is 52321543. The next prime is 52321559. The reversal of 52321552 is 25512325.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52321559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16927 + ... + 19777.

Almost surely, 2^52321552 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 52321552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53754496).

52321552 is an abundant number, since it is smaller than the sum of its proper divisors (55187440).

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

52321552 is a wasteful number, since it uses less digits than its factorization.

52321552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927 (or 2921 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 52321552 is about 7233.3638094596. The cubic root of 52321552 is about 374.0188919699.

Adding to 52321552 its reverse (25512325), we get a palindrome (77833877).

The spelling of 52321552 in words is "fifty-two million, three hundred twenty-one thousand, five hundred fifty-two".