2053376561 has 16 divisors (see below), whose sum is σ = 2126234880. Its totient is φ = 1981900800.

The previous prime is 2053376489. The next prime is 2053376579. The reversal of 2053376561 is 1656733502.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2053376561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2053375561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456625 + ... + 1458033.

It is an arithmetic number, because the mean of its divisors is an integer number (132889680).

Almost surely, 2^2053376561 is an apocalyptic number.

It is an amenable number.

2053376561 is a deficient number, since it is larger than the sum of its proper divisors (72858319).

2053376561 is a wasteful number, since it uses less digits than its factorization.

2053376561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 2053376561 is about 45314.1982274872. The cubic root of 2053376561 is about 1271.0311671954.

The spelling of 2053376561 in words is "two billion, fifty-three million, three hundred seventy-six thousand, five hundred sixty-one".