13521315052550 has 24 divisors (see below), whose sum is σ = 25380376705200. Its totient is φ = 5358906514080.

The previous prime is 13521315052549. The next prime is 13521315052589. The reversal of 13521315052550 is 5525051312531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1240482170 + ... + 1240493069.

It is an arithmetic number, because the mean of its divisors is an integer number (1057515696050).

Almost surely, 2^{13521315052550} is an apocalyptic number.

13521315052550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13521315052550 is a deficient number, since it is larger than the sum of its proper divisors (11859061652650).

13521315052550 is a wasteful number, since it uses less digits than its factorization.

13521315052550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480975360 (or 2480975355 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 13521315052550 in words is "thirteen trillion, five hundred twenty-one billion, three hundred fifteen million, fifty-two thousand, five hundred fifty".