2057411521 has 12 divisors (see below), whose sum is σ = 2264635156. Its totient is φ = 1867741920.

The previous prime is 2057411491. The next prime is 2057411537. The reversal of 2057411521 is 1251147502.

It can be written as a sum of positive squares in 2 ways, for example, as 1000836496 + 1056575025 = 31636^2 + 32505^2 .

It is not a de Polignac number, because 2057411521 - 2⁷ = 2057411393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2057411521.

It is not an unprimeable number, because it can be changed into a prime (2057411581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77095 + ... + 100291.

Almost surely, 2^2057411521 is an apocalyptic number.

It is an amenable number.

2057411521 is a deficient number, since it is larger than the sum of its proper divisors (207223635).

2057411521 is a wasteful number, since it uses less digits than its factorization.

2057411521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23952 (or 23941 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2057411521 is about 45358.6984050469. The cubic root of 2057411521 is about 1271.8631633668.

The spelling of 2057411521 in words is "two billion, fifty-seven million, four hundred eleven thousand, five hundred twenty-one".