52332240 has 160 divisors (see below), whose sum is σ = 171774720. Its totient is φ = 13160448.

The previous prime is 52332223. The next prime is 52332257. The reversal of 52332240 is 4223325.

It is an interprime number because it is at equal distance from previous prime (52332223) and next prime (52332257).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508029 + ... + 508131.

It is an arithmetic number, because the mean of its divisors is an integer number (1073592).

Almost surely, 2^52332240 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 52332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85887360).

52332240 is an abundant number, since it is smaller than the sum of its proper divisors (119442480).

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

52332240 is a wasteful number, since it uses less digits than its factorization.

52332240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 52332240 is about 7234.1025704644. The cubic root of 52332240 is about 374.0443578413.

Adding to 52332240 its reverse (4223325), we get a palindrome (56555565).

The spelling of 52332240 in words is "fifty-two million, three hundred thirty-two thousand, two hundred forty".