2052021437 has 2 divisors, whose sum is σ = 2052021438. Its totient is φ = 2052021436.

The previous prime is 2052021407. The next prime is 2052021479. The reversal of 2052021437 is 7341202502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1626589561 + 425431876 = 40331^2 + 20626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2052021437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2052021407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026010718 + 1026010719.

It is an arithmetic number, because the mean of its divisors is an integer number (1026010719).

Almost surely, 2^2052021437 is an apocalyptic number.

It is an amenable number.

2052021437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2052021437 is an equidigital number, since it uses as much as digits as its factorization.

2052021437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2052021437 is about 45299.2432276743. The cubic root of 2052021437 is about 1270.7515003756.

Adding to 2052021437 its reverse (7341202502), we get a palindrome (9393223939).

The spelling of 2052021437 in words is "two billion, fifty-two million, twenty-one thousand, four hundred thirty-seven".