2535220040520 has 128 divisors (see below), whose sum is σ = 7705205533440. Its totient is φ = 667252454400.

The previous prime is 2535220040519. The next prime is 2535220040533. The reversal of 2535220040520 is 250400225352.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3512109 + ... + 4171971.

It is an arithmetic number, because the mean of its divisors is an integer number (60196918230).

Almost surely, 2^{2535220040520} is an apocalyptic number.

2535220040520 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 2535220040520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3852602766720).

2535220040520 is an abundant number, since it is smaller than the sum of its proper divisors (5169985492920).

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

2535220040520 is a wasteful number, since it uses less digits than its factorization.

2535220040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660295 (or 660291 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 2535220040520 its reverse (250400225352), we get a palindrome (2785620265872).

The spelling of 2535220040520 in words is "two trillion, five hundred thirty-five billion, two hundred twenty million, forty thousand, five hundred twenty".