1056242513 has 4 divisors (see below), whose sum is σ = 1063841520. Its totient is φ = 1048643508.

The previous prime is 1056242507. The next prime is 1056242557. The reversal of 1056242513 is 3152426501.

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 a de Polignac number, because none of the positive numbers 2^k-1056242513 is a prime.

It is a super-2 number, since 2×1056242513² = 2231296492537110338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056242563) 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, 3799295 + ... + 3799572.

It is an arithmetic number, because the mean of its divisors is an integer number (265960380).

Almost surely, 2^1056242513 is an apocalyptic number.

It is an amenable number.

1056242513 is a deficient number, since it is larger than the sum of its proper divisors (7599007).

1056242513 is an equidigital number, since it uses as much as digits as its factorization.

1056242513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599006.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1056242513 is about 32499.8848151805. The cubic root of 1056242513 is about 1018.4066218610.

The spelling of 1056242513 in words is "one billion, fifty-six million, two hundred forty-two thousand, five hundred thirteen".