252402536 has 96 divisors (see below), whose sum is σ = 544388040. Its totient is φ = 109264896.

The previous prime is 252402523. The next prime is 252402539. The reversal of 252402536 is 635204252.

It can be written as a sum of positive squares in 4 ways, for example, as 246301636 + 6100900 = 15694^2 + 2470^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252402499 and 252402508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252402539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2602040 + ... + 2602136.

Almost surely, 2^252402536 is an apocalyptic number.

It is an amenable number.

252402536 is an abundant number, since it is smaller than the sum of its proper divisors (291985504).

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

252402536 is a wasteful number, since it uses less digits than its factorization.

252402536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 252402536 is about 15887.1814995612. The cubic root of 252402536 is about 631.9720985920.

Adding to 252402536 its reverse (635204252), we get a palindrome (887606788).

The spelling of 252402536 in words is "two hundred fifty-two million, four hundred two thousand, five hundred thirty-six".