2530820020 has 48 divisors (see below), whose sum is σ = 5386726800. Its totient is φ = 998666240.

The previous prime is 2530820003. The next prime is 2530820051. The reversal of 2530820020 is 200280352.

It can be written as a sum of positive squares in 8 ways, for example, as 6360484 + 2524459536 = 2522^2 + 50244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2530819973 and 2530820000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926016 + ... + 928744.

It is an arithmetic number, because the mean of its divisors is an integer number (112223475).

Almost surely, 2^2530820020 is an apocalyptic number.

2530820020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530820020 is an abundant number, since it is smaller than the sum of its proper divisors (2855906780).

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

2530820020 is a wasteful number, since it uses less digits than its factorization.

2530820020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2530820020 is about 50307.2561366648. The cubic root of 2530820020 is about 1362.7632723024.

The spelling of 2530820020 in words is "two billion, five hundred thirty million, eight hundred twenty thousand, twenty".