1057481571 has 32 divisors (see below), whose sum is σ = 1469156608. Its totient is φ = 676045440.

The previous prime is 1057481567. The next prime is 1057481587. The reversal of 1057481571 is 1751847501.

It is not a de Polignac number, because 1057481571 - 2² = 1057481567 is a prime.

It is a super-2 number, since 2×1057481571² = 2236534546009256082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057481501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3817485 + ... + 3817761.

It is an arithmetic number, because the mean of its divisors is an integer number (45911144).

Almost surely, 2^1057481571 is an apocalyptic number.

1057481571 is a deficient number, since it is larger than the sum of its proper divisors (411675037).

1057481571 is a wasteful number, since it uses less digits than its factorization.

1057481571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 39200, while the sum is 39.

The square root of 1057481571 is about 32518.9417263231. The cubic root of 1057481571 is about 1018.8046907245.

The spelling of 1057481571 in words is "one billion, fifty-seven million, four hundred eighty-one thousand, five hundred seventy-one".