2021503325 has 12 divisors (see below), whose sum is σ = 2574412980. Its totient is φ = 1573493760.

The previous prime is 2021503291. The next prime is 2021503331. The reversal of 2021503325 is 5233051202.

It can be written as a sum of positive squares in 6 ways, for example, as 68128516 + 1953374809 = 8254^2 + 44197^2 .

It is not a de Polignac number, because 2021503325 - 2¹⁸ = 2021241181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021503325.

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 11 ways as a sum of consecutive naturals, for example, 1091780 + ... + 1093629.

It is an arithmetic number, because the mean of its divisors is an integer number (214534415).

Almost surely, 2^2021503325 is an apocalyptic number.

2021503325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021503325 is a deficient number, since it is larger than the sum of its proper divisors (552909655).

2021503325 is a wasteful number, since it uses less digits than its factorization.

2021503325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185456 (or 2185451 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2021503325 is about 44961.1312691307. The cubic root of 2021503325 is about 1264.4203784306.

Adding to 2021503325 its reverse (5233051202), we get a palindrome (7254554527).

The spelling of 2021503325 in words is "two billion, twenty-one million, five hundred three thousand, three hundred twenty-five".