1056557715 has 32 divisors (see below), whose sum is σ = 1713441600. Its totient is φ = 555878400.

The previous prime is 1056557683. The next prime is 1056557753. The reversal of 1056557715 is 5177556501.

It is a happy number.

It is not a de Polignac number, because 1056557715 - 2⁵ = 1056557683 is a prime.

It is a super-2 number, since 2×1056557715² = 2232628410252042450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935271 + ... + 936399.

It is an arithmetic number, because the mean of its divisors is an integer number (53545050).

Almost surely, 2^1056557715 is an apocalyptic number.

1056557715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1056557715 is a deficient number, since it is larger than the sum of its proper divisors (656883885).

1056557715 is a wasteful number, since it uses less digits than its factorization.

1056557715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927.

The product of its (nonzero) digits is 183750, while the sum is 42.

The square root of 1056557715 is about 32504.7337321812. The cubic root of 1056557715 is about 1018.5079154794.

The spelling of 1056557715 in words is "one billion, fifty-six million, five hundred fifty-seven thousand, seven hundred fifteen".