2053747049 has 4 divisors (see below), whose sum is σ = 2109253764. Its totient is φ = 1998240336.

The previous prime is 2053747043. The next prime is 2053747051. The reversal of 2053747049 is 9407473502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1932042025 + 121705024 = 43955^2 + 11032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2053747049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2053746997 and 2053747015.

It is not an unprimeable number, because it can be changed into a prime (2053747043) 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, 27753302 + ... + 27753375.

It is an arithmetic number, because the mean of its divisors is an integer number (527313441).

Almost surely, 2^2053747049 is an apocalyptic number.

It is an amenable number.

2053747049 is a deficient number, since it is larger than the sum of its proper divisors (55506715).

2053747049 is an equidigital number, since it uses as much as digits as its factorization.

2053747049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55506714.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 2053747049 is about 45318.2860333442. The cubic root of 2053747049 is about 1271.1076060856.

The spelling of 2053747049 in words is "two billion, fifty-three million, seven hundred forty-seven thousand, forty-nine".