1053985571 has 4 divisors (see below), whose sum is σ = 1054119600. Its totient is φ = 1053851544.

The previous prime is 1053985561. The next prime is 1053985579. The reversal of 1053985571 is 1755893501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1755893501 = 17 ⋅103287853.

It is a cyclic number.

It is not a de Polignac number, because 1053985571 - 2¹⁴ = 1053969187 is a prime.

It is a super-2 number, since 2×1053985571² = 2221771167752392082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053985579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54431 + ... + 71208.

It is an arithmetic number, because the mean of its divisors is an integer number (263529900).

Almost surely, 2^1053985571 is an apocalyptic number.

1053985571 is a deficient number, since it is larger than the sum of its proper divisors (134029).

1053985571 is an equidigital number, since it uses as much as digits as its factorization.

1053985571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134028.

The product of its (nonzero) digits is 189000, while the sum is 44.

The square root of 1053985571 is about 32465.1439393082. The cubic root of 1053985571 is about 1017.6807394040.

The spelling of 1053985571 in words is "one billion, fifty-three million, nine hundred eighty-five thousand, five hundred seventy-one".