52513140 has 48 divisors (see below), whose sum is σ = 153433728. Its totient is φ = 13394304.

The previous prime is 52513133. The next prime is 52513151. The reversal of 52513140 is 4131525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17647 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (3196536).

Almost surely, 2^52513140 is an apocalyptic number.

It is an amenable number.

52513140 is an abundant number, since it is smaller than the sum of its proper divisors (100920588).

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

52513140 is a wasteful number, since it uses less digits than its factorization.

52513140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38088 (or 38086 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 52513140 is about 7246.5950625104. The cubic root of 52513140 is about 374.4748560513.

Adding to 52513140 its reverse (4131525), we get a palindrome (56644665).

The spelling of 52513140 in words is "fifty-two million, five hundred thirteen thousand, one hundred forty".