2054561653 has 4 divisors (see below), whose sum is σ = 2059983040. Its totient is φ = 2049140268.

The previous prime is 2054561647. The next prime is 2054561671. The reversal of 2054561653 is 3561654502.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054561653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054567653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710125 + ... + 2710882.

It is an arithmetic number, because the mean of its divisors is an integer number (514995760).

Almost surely, 2^2054561653 is an apocalyptic number.

It is an amenable number.

2054561653 is a deficient number, since it is larger than the sum of its proper divisors (5421387).

2054561653 is an equidigital number, since it uses as much as digits as its factorization.

2054561653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421386.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 2054561653 is about 45327.2727284579. The cubic root of 2054561653 is about 1271.2756424349.

The spelling of 2054561653 in words is "two billion, fifty-four million, five hundred sixty-one thousand, six hundred fifty-three".