252530136 has 80 divisors (see below), whose sum is σ = 716416800. Its totient is φ = 83094336.

The previous prime is 252530081. The next prime is 252530137. The reversal of 252530136 is 631035252.

252530136 is a `hidden beast` number, since 2 + 525 + 3 + 0 + 136 = 666.

252530136 is digitally balanced in base 3, 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252530137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48726 + ... + 53658.

It is an arithmetic number, because the mean of its divisors is an integer number (8955210).

Almost surely, 2^252530136 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 252530136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358208400).

252530136 is an abundant number, since it is smaller than the sum of its proper divisors (463886664).

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

252530136 is a wasteful number, since it uses less digits than its factorization.

252530136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030 (or 5017 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 252530136 is about 15891.1968082961. The cubic root of 252530136 is about 632.0785767280.

Adding to 252530136 its reverse (631035252), we get a palindrome (883565388).

The spelling of 252530136 in words is "two hundred fifty-two million, five hundred thirty thousand, one hundred thirty-six".