13552500040 has 64 divisors (see below), whose sum is σ = 31078143360. Its totient is φ = 5317678080.

The previous prime is 13552500037. The next prime is 13552500041. The reversal of 13552500040 is 4000525531.

It is a junction number, because it is equal to n+sod(n) for n = 13552499978 and 13552500014.

It is not an unprimeable number, because it can be changed into a prime (13552500041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635389 + ... + 656371.

It is an arithmetic number, because the mean of its divisors is an integer number (485595990).

Almost surely, 2^13552500040 is an apocalyptic number.

13552500040 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 13552500040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15539071680).

13552500040 is an abundant number, since it is smaller than the sum of its proper divisors (17525643320).

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

13552500040 is a wasteful number, since it uses less digits than its factorization.

13552500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21302 (or 21298 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 13552500040 in words is "thirteen billion, five hundred fifty-two million, five hundred thousand, forty".