1056535565 has 16 divisors (see below), whose sum is σ = 1340137920. Its totient is φ = 797402880.

The previous prime is 1056535559. The next prime is 1056535577. The reversal of 1056535565 is 5655356501.

It is not a de Polignac number, because 1056535565 - 2²⁶ = 989426701 is a prime.

It is a super-2 number, since 2×1056535565² = 2232534800219738450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179 + ... + 45968.

It is an arithmetic number, because the mean of its divisors is an integer number (83758620).

Almost surely, 2^1056535565 is an apocalyptic number.

It is an amenable number.

1056535565 is a deficient number, since it is larger than the sum of its proper divisors (283602355).

1056535565 is a wasteful number, since it uses less digits than its factorization.

1056535565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46412.

The product of its (nonzero) digits is 337500, while the sum is 41.

The square root of 1056535565 is about 32504.3930107916. The cubic root of 1056535565 is about 1018.5007979922.

The spelling of 1056535565 in words is "one billion, fifty-six million, five hundred thirty-five thousand, five hundred sixty-five".