2019052621 has 2 divisors, whose sum is σ = 2019052622. Its totient is φ = 2019052620.

The previous prime is 2019052597. The next prime is 2019052643. The reversal of 2019052621 is 1262509102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182396996 + 836655625 = 34386^2 + 28925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019052621 - 2⁵ = 2019052589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2019052621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2019052681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009526310 + 1009526311.

It is an arithmetic number, because the mean of its divisors is an integer number (1009526311).

Almost surely, 2^2019052621 is an apocalyptic number.

It is an amenable number.

2019052621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019052621 is an equidigital number, since it uses as much as digits as its factorization.

2019052621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2019052621 is about 44933.8694194034. The cubic root of 2019052621 is about 1263.9092121291.

The spelling of 2019052621 in words is "two billion, nineteen million, fifty-two thousand, six hundred twenty-one".