52135520 has 48 divisors (see below), whose sum is σ = 123606000. Its totient is φ = 20780544.

The previous prime is 52135507. The next prime is 52135529. The reversal of 52135520 is 2553125.

It is a super-2 number, since 2×52135520² = 5436224891340800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52135529) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 79514 + ... + 80166.

It is an arithmetic number, because the mean of its divisors is an integer number (2575125).

Almost surely, 2^52135520 is an apocalyptic number.

It is an amenable number.

52135520 is an abundant number, since it is smaller than the sum of its proper divisors (71470480).

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

52135520 is a wasteful number, since it uses less digits than its factorization.

52135520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52135520 is about 7220.4930579566. The cubic root of 52135520 is about 373.5750843507.

Adding to 52135520 its reverse (2553125), we get a palindrome (54688645).

The spelling of 52135520 in words is "fifty-two million, one hundred thirty-five thousand, five hundred twenty".