52052140 has 48 divisors (see below), whose sum is σ = 126245952. Its totient is φ = 17657856.

The previous prime is 52052137. The next prime is 52052141. The reversal of 52052140 is 4125025.

It is not an unprimeable number, because it can be changed into a prime (52052141) 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, 11664 + ... + 15496.

It is an arithmetic number, because the mean of its divisors is an integer number (2630124).

Almost surely, 2^52052140 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 52052140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63122976).

52052140 is an abundant number, since it is smaller than the sum of its proper divisors (74193812).

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

52052140 is a wasteful number, since it uses less digits than its factorization.

52052140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52052140 is about 7214.7169036630. The cubic root of 52052140 is about 373.3758260165.

Adding to 52052140 its reverse (4125025), we get a palindrome (56177165).

The spelling of 52052140 in words is "fifty-two million, fifty-two thousand, one hundred forty".