2485448981 has 8 divisors (see below), whose sum is σ = 2502809400. Its totient is φ = 2468145600.

The previous prime is 2485448893. The next prime is 2485449007. The reversal of 2485448981 is 1898445842.

It can be written as a sum of positive squares in 4 ways, for example, as 1155388081 + 1330060900 = 33991^2 + 36470^2 .

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 2485448981 - 2¹⁴ = 2485432597 is a prime.

It is a super-2 number, since 2×2485448981² = 12354913274307876722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2485448681) 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 7 ways as a sum of consecutive naturals, for example, 75131 + ... + 103031.

It is an arithmetic number, because the mean of its divisors is an integer number (312851175).

Almost surely, 2^2485448981 is an apocalyptic number.

It is an amenable number.

2485448981 is a deficient number, since it is larger than the sum of its proper divisors (17360419).

2485448981 is a wasteful number, since it uses less digits than its factorization.

2485448981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28519.

The product of its digits is 2949120, while the sum is 53.

The square root of 2485448981 is about 49854.2774594116. The cubic root of 2485448981 is about 1354.5705135197.

The spelling of 2485448981 in words is "two billion, four hundred eighty-five million, four hundred forty-eight thousand, nine hundred eighty-one".