1056389653 has 12 divisors (see below), whose sum is σ = 1171446444. Its totient is φ = 951843200.

The previous prime is 1056389651. The next prime is 1056389657. The reversal of 1056389653 is 3569836501.

It can be written as a sum of positive squares in 2 ways, for example, as 334231524 + 722158129 = 18282^2 + 26873^2 .

It is not a de Polignac number, because 1056389653 - 2¹ = 1056389651 is a prime.

It is a super-2 number, since 2×1056389653² = 2231918197930920818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056389651) 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 11 ways as a sum of consecutive naturals, for example, 24958 + ... + 52303.

It is an arithmetic number, because the mean of its divisors is an integer number (97620537).

Almost surely, 2^1056389653 is an apocalyptic number.

It is an amenable number.

1056389653 is a deficient number, since it is larger than the sum of its proper divisors (115056791).

1056389653 is a wasteful number, since it uses less digits than its factorization.

1056389653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77396 (or 77385 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 1056389653 is about 32502.1484366803. The cubic root of 1056389653 is about 1018.4539094207.

The spelling of 1056389653 in words is "one billion, fifty-six million, three hundred eighty-nine thousand, six hundred fifty-three".