2052543651 has 4 divisors (see below), whose sum is σ = 2736724872. Its totient is φ = 1368362432.

The previous prime is 2052543641. The next prime is 2052543653. The reversal of 2052543651 is 1563452502.

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

It is a cyclic number.

It is not a de Polignac number, because 2052543651 - 2⁷ = 2052543523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2052543653) 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, 342090606 + ... + 342090611.

It is an arithmetic number, because the mean of its divisors is an integer number (684181218).

Almost surely, 2^2052543651 is an apocalyptic number.

2052543651 is a deficient number, since it is larger than the sum of its proper divisors (684181221).

2052543651 is an equidigital number, since it uses as much as digits as its factorization.

2052543651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684181220.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 2052543651 is about 45305.0069087292. The cubic root of 2052543651 is about 1270.8592880635.

The spelling of 2052543651 in words is "two billion, fifty-two million, five hundred forty-three thousand, six hundred fifty-one".