2271020557 has 8 divisors (see below), whose sum is σ = 2446111136. Its totient is φ = 2095986672.

The previous prime is 2271020539. The next prime is 2271020567. The reversal of 2271020557 is 7550201722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2271020557 - 2¹¹ = 2271018509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271020567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108238 + ... + 127504.

It is an arithmetic number, because the mean of its divisors is an integer number (305763892).

Almost surely, 2^2271020557 is an apocalyptic number.

It is an amenable number.

2271020557 is a deficient number, since it is larger than the sum of its proper divisors (175090579).

2271020557 is a wasteful number, since it uses less digits than its factorization.

2271020557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28347.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 2271020557 is about 47655.2259148984. The cubic root of 2271020557 is about 1314.4387542617.

The spelling of 2271020557 in words is "two billion, two hundred seventy-one million, twenty thousand, five hundred fifty-seven".