1056557713 has 4 divisors (see below), whose sum is σ = 1069287408. Its totient is φ = 1043828020.

The previous prime is 1056557683. The next prime is 1056557753. The reversal of 1056557713 is 3177556501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1056557713 - 2¹⁷ = 1056426641 is a prime.

It is a super-2 number, since 2×1056557713² = 2232628401799580738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056557753) 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, 6364723 + ... + 6364888.

It is an arithmetic number, because the mean of its divisors is an integer number (267321852).

Almost surely, 2^1056557713 is an apocalyptic number.

It is an amenable number.

1056557713 is a deficient number, since it is larger than the sum of its proper divisors (12729695).

1056557713 is an equidigital number, since it uses as much as digits as its factorization.

1056557713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729694.

The product of its (nonzero) digits is 110250, while the sum is 40.

The square root of 1056557713 is about 32504.7337014165. The cubic root of 1056557713 is about 1018.5079148367.

The spelling of 1056557713 in words is "one billion, fifty-six million, five hundred fifty-seven thousand, seven hundred thirteen".