1056056039 has 4 divisors (see below), whose sum is σ = 1056121056. Its totient is φ = 1055991024.

The previous prime is 1056056021. The next prime is 1056056041. The reversal of 1056056039 is 9306506501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9306506501 = 6211 ⋅1498391.

It is a cyclic number.

It is not a de Polignac number, because 1056056039 - 2⁸ = 1056055783 is a prime.

It is a super-3 number, since 3×1056056039³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056056539) 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, 14987 + ... + 48339.

It is an arithmetic number, because the mean of its divisors is an integer number (264030264).

Almost surely, 2^1056056039 is an apocalyptic number.

1056056039 is a deficient number, since it is larger than the sum of its proper divisors (65017).

1056056039 is an equidigital number, since it uses as much as digits as its factorization.

1056056039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65016.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 1056056039 is about 32497.0158476128. The cubic root of 1056056039 is about 1018.3466869089.

The spelling of 1056056039 in words is "one billion, fifty-six million, fifty-six thousand, thirty-nine".