1056730503 has 4 divisors (see below), whose sum is σ = 1408974008. Its totient is φ = 704487000.

The previous prime is 1056730481. The next prime is 1056730517. The reversal of 1056730503 is 3050376501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3050376501 = 3 ⋅1016792167.

It is not a de Polignac number, because 1056730503 - 2⁶ = 1056730439 is a prime.

It is a super-2 number, since 2×1056730503² = 2233358711941266018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056730583) 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, 176121748 + ... + 176121753.

It is an arithmetic number, because the mean of its divisors is an integer number (352243502).

Almost surely, 2^1056730503 is an apocalyptic number.

1056730503 is a deficient number, since it is larger than the sum of its proper divisors (352243505).

1056730503 is an equidigital number, since it uses as much as digits as its factorization.

1056730503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352243504.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 1056730503 is about 32507.3915133159. The cubic root of 1056730503 is about 1018.5634342490.

The spelling of 1056730503 in words is "one billion, fifty-six million, seven hundred thirty thousand, five hundred three".