1056635512553 has 8 divisors (see below), whose sum is σ = 1058123849760. Its totient is φ = 1055148050880.

The previous prime is 1056635512531. The next prime is 1056635512573. The reversal of 1056635512553 is 3552155366501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056635512553 - 2⁸ = 1056635512297 is a prime.

It is a super-2 number, since 2×1056635512553² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1056635512498 and 1056635512507.

It is not an unprimeable number, because it can be changed into a prime (1056635512573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215526 + ... + 2649872.

It is an arithmetic number, because the mean of its divisors is an integer number (132265481220).

Almost surely, 2^{1056635512553} is an apocalyptic number.

It is an amenable number.

1056635512553 is a deficient number, since it is larger than the sum of its proper divisors (1488337207).

1056635512553 is a wasteful number, since it uses less digits than its factorization.

1056635512553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437767.

The product of its (nonzero) digits is 2025000, while the sum is 47.

The spelling of 1056635512553 in words is "one trillion, fifty-six billion, six hundred thirty-five million, five hundred twelve thousand, five hundred fifty-three".