52010140 has 144 divisors (see below), whose sum is σ = 145889856. Its totient is φ = 15114240.

The previous prime is 52010111. The next prime is 52010141. The reversal of 52010140 is 4101025.

52010140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 52010140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52010141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1268520 + ... + 1268560.

It is an arithmetic number, because the mean of its divisors is an integer number (1013124).

Almost surely, 2^52010140 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 52010140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72944928).

52010140 is an abundant number, since it is smaller than the sum of its proper divisors (93879716).

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

52010140 is a wasteful number, since it uses less digits than its factorization.

52010140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 52010140 is about 7211.8055991548. The cubic root of 52010140 is about 373.2753754274.

Adding to 52010140 its reverse (4101025), we get a palindrome (56111165).

The spelling of 52010140 in words is "fifty-two million, ten thousand, one hundred forty".