13520554040 has 32 divisors (see below), whose sum is σ = 34767139680. Its totient is φ = 4635618432.

The previous prime is 13520554039. The next prime is 13520554049. The reversal of 13520554040 is 4045502531.

It is a junction number, because it is equal to n+sod(n) for n = 13520553994 and 13520554012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520554049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24143567 + ... + 24144126.

It is an arithmetic number, because the mean of its divisors is an integer number (1086473115).

Almost surely, 2^13520554040 is an apocalyptic number.

13520554040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13520554040 is an abundant number, since it is smaller than the sum of its proper divisors (21246585640).

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

13520554040 is a wasteful number, since it uses less digits than its factorization.

13520554040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48287711 (or 48287707 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 13520554040 in words is "thirteen billion, five hundred twenty million, five hundred fifty-four thousand, forty".