2053978447 has 8 divisors (see below), whose sum is σ = 2182233600. Its totient is φ = 1929551904.

The previous prime is 2053978441. The next prime is 2053978457. The reversal of 2053978447 is 7448793502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2053978447 - 2²⁷ = 1919760719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2053978447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053978441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956047 + ... + 958192.

It is an arithmetic number, because the mean of its divisors is an integer number (272779200).

Almost surely, 2^2053978447 is an apocalyptic number.

2053978447 is a deficient number, since it is larger than the sum of its proper divisors (128255153).

2053978447 is a wasteful number, since it uses less digits than its factorization.

2053978447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914305.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 2053978447 is about 45320.8389926753. The cubic root of 2053978447 is about 1271.1553433361.

The spelling of 2053978447 in words is "two billion, fifty-three million, nine hundred seventy-eight thousand, four hundred forty-seven".