1656056553 has 8 divisors (see below), whose sum is σ = 2232885600. Its totient is φ = 1091632608.

The previous prime is 1656056551. The next prime is 1656056561. The reversal of 1656056553 is 3556506561.

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

It is not a de Polignac number, because 1656056553 - 2¹ = 1656056551 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1656056551) 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 7 ways as a sum of consecutive naturals, for example, 3100963 + ... + 3101496.

It is an arithmetic number, because the mean of its divisors is an integer number (279110700).

Almost surely, 2^1656056553 is an apocalyptic number.

It is an amenable number.

1656056553 is a deficient number, since it is larger than the sum of its proper divisors (576829047).

1656056553 is an equidigital number, since it uses as much as digits as its factorization.

1656056553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202551.

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

The square root of 1656056553 is about 40694.6747498982. The cubic root of 1656056553 is about 1183.1098075097.

The spelling of 1656056553 in words is "one billion, six hundred fifty-six million, fifty-six thousand, five hundred fifty-three".