13530220524 has 72 divisors (see below), whose sum is σ = 34489728000. Its totient is φ = 4472133984.

The previous prime is 13530220493. The next prime is 13530220547. The reversal of 13530220524 is 42502203531.

It is a happy number.

13530220524 is a `hidden beast` number, since 135 + 3 + 0 + 2 + 2 + 0 + 524 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7199817 + ... + 7201695.

It is an arithmetic number, because the mean of its divisors is an integer number (479024000).

Almost surely, 2^13530220524 is an apocalyptic number.

It is an amenable number.

13530220524 is an abundant number, since it is smaller than the sum of its proper divisors (20959507476).

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

13530220524 is a wasteful number, since it uses less digits than its factorization.

13530220524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 13530220524 in words is "thirteen billion, five hundred thirty million, two hundred twenty thousand, five hundred twenty-four".