1055656653 has 4 divisors (see below), whose sum is σ = 1407542208. Its totient is φ = 703771100.

The previous prime is 1055656649. The next prime is 1055656661. The reversal of 1055656653 is 3566565501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3566565501 = 3 ⋅1188855167.

It is a cyclic number.

It is not a de Polignac number, because 1055656653 - 2² = 1055656649 is a prime.

It is a super-2 number, since 2×1055656653² = 2228821938046324818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055656603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175942773 + ... + 175942778.

It is an arithmetic number, because the mean of its divisors is an integer number (351885552).

Almost surely, 2^1055656653 is an apocalyptic number.

It is an amenable number.

1055656653 is a deficient number, since it is larger than the sum of its proper divisors (351885555).

1055656653 is an equidigital number, since it uses as much as digits as its factorization.

1055656653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351885554.

The product of its (nonzero) digits is 405000, while the sum is 42.

The square root of 1055656653 is about 32490.8703022865. The cubic root of 1055656653 is about 1018.2182957766.

The spelling of 1055656653 in words is "one billion, fifty-five million, six hundred fifty-six thousand, six hundred fifty-three".