1056494503 has 4 divisors (see below), whose sum is σ = 1056653280. Its totient is φ = 1056335728.

The previous prime is 1056494497. The next prime is 1056494507. The reversal of 1056494503 is 3054946501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056494503 is a prime.

It is a super-2 number, since 2×1056494503² = 2232361269738434018, 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 (1056494507) 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, 68950 + ... + 82867.

It is an arithmetic number, because the mean of its divisors is an integer number (264163320).

Almost surely, 2^1056494503 is an apocalyptic number.

1056494503 is a deficient number, since it is larger than the sum of its proper divisors (158777).

1056494503 is an equidigital number, since it uses as much as digits as its factorization.

1056494503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158776.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1056494503 is about 32503.7613669557. The cubic root of 1056494503 is about 1018.4876032253.

The spelling of 1056494503 in words is "one billion, fifty-six million, four hundred ninety-four thousand, five hundred three".