252450135502 has 16 divisors (see below), whose sum is σ = 381230409600. Its totient is φ = 125373540600.

The previous prime is 252450135491. The next prime is 252450135533. The reversal of 252450135502 is 205531054252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603649 + ... + 2698867.

It is an arithmetic number, because the mean of its divisors is an integer number (23826900600).

Almost surely, 2^252450135502 is an apocalyptic number.

252450135502 is a deficient number, since it is larger than the sum of its proper divisors (128780274098).

252450135502 is a wasteful number, since it uses less digits than its factorization.

252450135502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104151.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 252450135502 its reverse (205531054252), we get a palindrome (457981189754).

The spelling of 252450135502 in words is "two hundred fifty-two billion, four hundred fifty million, one hundred thirty-five thousand, five hundred two".