13551520500 has 288 divisors, whose sum is σ = 49594691328. Its totient is φ = 3050784000.

The previous prime is 13551520483. The next prime is 13551520517. The reversal of 13551520500 is 502515531.

13551520500 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 152 + 0 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (13551520483) and next prime (13551520517).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2107290 + ... + 2113710.

Almost surely, 2^13551520500 is an apocalyptic number.

13551520500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13551520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24797345664).

13551520500 is an abundant number, since it is smaller than the sum of its proper divisors (36043170828).

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

13551520500 is a wasteful number, since it uses less digits than its factorization.

13551520500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 13551520500 in words is "thirteen billion, five hundred fifty-one million, five hundred twenty thousand, five hundred".