2054899745 has 4 divisors (see below), whose sum is σ = 2465879700. Its totient is φ = 1643919792.

The previous prime is 2054899727. The next prime is 2054899753. The reversal of 2054899745 is 5479984502.

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 272118016 + 1782781729 = 16496^2 + 42223^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054899745 - 2⁸ = 2054899489 is a prime.

It is a super-2 number, since 2×2054899745² = 8445225924002130050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205489970 + ... + 205489979.

It is an arithmetic number, because the mean of its divisors is an integer number (616469925).

Almost surely, 2^2054899745 is an apocalyptic number.

It is an amenable number.

2054899745 is a deficient number, since it is larger than the sum of its proper divisors (410979955).

2054899745 is an equidigital number, since it uses as much as digits as its factorization.

2054899745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410979954.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The square root of 2054899745 is about 45331.0020295162. The cubic root of 2054899745 is about 1271.3453709421.

The spelling of 2054899745 in words is "two billion, fifty-four million, eight hundred ninety-nine thousand, seven hundred forty-five".