2503205620 has 12 divisors (see below), whose sum is σ = 5256731844. Its totient is φ = 1001282240.

The previous prime is 2503205581. The next prime is 2503205623. The reversal of 2503205620 is 265023052.

It can be written as a sum of positive squares in 2 ways, for example, as 1472410384 + 1030795236 = 38372^2 + 32106^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503205623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62580121 + ... + 62580160.

It is an arithmetic number, because the mean of its divisors is an integer number (438060987).

Almost surely, 2^2503205620 is an apocalyptic number.

2503205620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2503205620 is an abundant number, since it is smaller than the sum of its proper divisors (2753526224).

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

2503205620 is a wasteful number, since it uses less digits than its factorization.

2503205620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125160290 (or 125160288 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2503205620 is about 50032.0459305833. The cubic root of 2503205620 is about 1357.7886532930.

Adding to 2503205620 its reverse (265023052), we get a palindrome (2768228672).

The spelling of 2503205620 in words is "two billion, five hundred three million, two hundred five thousand, six hundred twenty".