1056006005973 has 4 divisors (see below), whose sum is σ = 1408008007968. Its totient is φ = 704004003980.

The previous prime is 1056006005903. The next prime is 1056006006017. The reversal of 1056006005973 is 3795006006501.

It is a happy number.

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 not a de Polignac number, because 1056006005973 - 2¹⁸ = 1056005743829 is a prime.

It is a super-2 number, since 2×1056006005973² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056006005903) 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, 176001000993 + ... + 176001000998.

It is an arithmetic number, because the mean of its divisors is an integer number (352002001992).

Almost surely, 2^{1056006005973} is an apocalyptic number.

It is an amenable number.

1056006005973 is a deficient number, since it is larger than the sum of its proper divisors (352002001995).

1056006005973 is an equidigital number, since it uses as much as digits as its factorization.

1056006005973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352002001994.

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 1056006005973 in words is "one trillion, fifty-six billion, six million, five thousand, nine hundred seventy-three".