252021305053502 has 16 divisors (see below), whose sum is σ = 400373178847200. Its totient is φ = 118567432374528.

The previous prime is 252021305053501. The next prime is 252021305053523. The reversal of 252021305053502 is 205350503120252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252021305053501) by changing a digit.

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, 963268127 + ... + 963529722.

It is an arithmetic number, because the mean of its divisors is an integer number (25023323677950).

Almost surely, 2^{252021305053502} is an apocalyptic number.

252021305053502 is a deficient number, since it is larger than the sum of its proper divisors (148351873793698).

252021305053502 is a wasteful number, since it uses less digits than its factorization.

252021305053502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926801715.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 252021305053502 its reverse (205350503120252), we get a palindrome (457371808173754).

The spelling of 252021305053502 in words is "two hundred fifty-two trillion, twenty-one billion, three hundred five million, fifty-three thousand, five hundred two".