13525502520420 has 144 divisors (see below), whose sum is σ = 44989020865152. Its totient is φ = 3261920440320.

The previous prime is 13525502520419. The next prime is 13525502520461. The reversal of 13525502520420 is 2402520552531.

13525502520420 is a `hidden beast` number, since 1 + 3 + 52 + 550 + 2 + 52 + 0 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17314912 + ... + 18079191.

It is an arithmetic number, because the mean of its divisors is an integer number (312423756008).

Almost surely, 2^{13525502520420} is an apocalyptic number.

13525502520420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13525502520420 is an abundant number, since it is smaller than the sum of its proper divisors (31463518344732).

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

13525502520420 is a wasteful number, since it uses less digits than its factorization.

13525502520420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35394322 (or 35394317 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 13525502520420 in words is "thirteen trillion, five hundred twenty-five billion, five hundred two million, five hundred twenty thousand, four hundred twenty".