2503532021 has 2 divisors, whose sum is σ = 2503532022. Its totient is φ = 2503532020.

The previous prime is 2503531973. The next prime is 2503532099. The reversal of 2503532021 is 1202353052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1669131025 + 834400996 = 40855^2 + 28886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2503532021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2503532621) by changing a digit.

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 as a sum of consecutive naturals, namely, 1251766010 + 1251766011.

It is an arithmetic number, because the mean of its divisors is an integer number (1251766011).

Almost surely, 2^2503532021 is an apocalyptic number.

It is an amenable number.

2503532021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503532021 is an equidigital number, since it uses as much as digits as its factorization.

2503532021 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2503532021 is about 50035.3077436324. The cubic root of 2503532021 is about 1357.8476661989.

Adding to 2503532021 its reverse (1202353052), we get a palindrome (3705885073).

The spelling of 2503532021 in words is "two billion, five hundred three million, five hundred thirty-two thousand, twenty-one".