2104510520 has 64 divisors (see below), whose sum is σ = 5419742400. Its totient is φ = 720460800.

The previous prime is 2104510519. The next prime is 2104510537. The reversal of 2104510520 is 250154012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2104510492 and 2104510501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193220 + ... + 203820.

It is an arithmetic number, because the mean of its divisors is an integer number (84683475).

Almost surely, 2^2104510520 is an apocalyptic number.

2104510520 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 2104510520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2709871200).

2104510520 is an abundant number, since it is smaller than the sum of its proper divisors (3315231880).

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

2104510520 is a wasteful number, since it uses less digits than its factorization.

2104510520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328 (or 11324 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2104510520 is about 45874.9443596393. The cubic root of 2104510520 is about 1281.4953471221.

Adding to 2104510520 its reverse (250154012), we get a palindrome (2354664532).

The spelling of 2104510520 in words is "two billion, one hundred four million, five hundred ten thousand, five hundred twenty".