2013551540 has 192 divisors, whose sum is σ = 5811886080. Its totient is φ = 565608960.

The previous prime is 2013551539. The next prime is 2013551557. The reversal of 2013551540 is 451553102.

It is a super-3 number, since 3×2013551540³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 859691 + ... + 862029.

It is an arithmetic number, because the mean of its divisors is an integer number (30270240).

Almost surely, 2^2013551540 is an apocalyptic number.

2013551540 is a gapful number since it is divisible by the number (20) 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 2013551540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905943040).

2013551540 is an abundant number, since it is smaller than the sum of its proper divisors (3798334540).

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

2013551540 is a wasteful number, since it uses less digits than its factorization.

2013551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2013551540 is about 44872.6145884102. The cubic root of 2013551540 is about 1262.7602919185.

The spelling of 2013551540 in words is "two billion, thirteen million, five hundred fifty-one thousand, five hundred forty".