2053191561 has 16 divisors (see below), whose sum is σ = 2871884160. Its totient is φ = 1302976640.

The previous prime is 2053191559. The next prime is 2053191583. The reversal of 2053191561 is 1651913502.

It is a cyclic number.

It is not a de Polignac number, because 2053191561 - 2¹ = 2053191559 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2053191061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160020 + ... + 172373.

It is an arithmetic number, because the mean of its divisors is an integer number (179492760).

Almost surely, 2^2053191561 is an apocalyptic number.

It is an amenable number.

2053191561 is a deficient number, since it is larger than the sum of its proper divisors (818692599).

2053191561 is a wasteful number, since it uses less digits than its factorization.

2053191561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332496.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 2053191561 is about 45312.1568787009. The cubic root of 2053191561 is about 1270.9929946504.

The spelling of 2053191561 in words is "two billion, fifty-three million, one hundred ninety-one thousand, five hundred sixty-one".