2520201020 has 48 divisors (see below), whose sum is σ = 5324175360. Its totient is φ = 1002056256.

The previous prime is 2520200999. The next prime is 2520201029. The reversal of 2520201020 is 201020252.

It is a junction number, because it is equal to n+sod(n) for n = 2520200986 and 2520201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520201029) 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, 4818479 + ... + 4819001.

It is an arithmetic number, because the mean of its divisors is an integer number (110920320).

Almost surely, 2^2520201020 is an apocalyptic number.

2520201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520201020 is an abundant number, since it is smaller than the sum of its proper divisors (2803974340).

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

2520201020 is a wasteful number, since it uses less digits than its factorization.

2520201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2520201020 is about 50201.6037592426. The cubic root of 2520201020 is about 1360.8546063185.

Adding to 2520201020 its reverse (201020252), we get a palindrome (2721221272).

The spelling of 2520201020 in words is "two billion, five hundred twenty million, two hundred one thousand, twenty".