2573956449 has 12 divisors (see below), whose sum is σ = 3719427712. Its totient is φ = 1715283000.

The previous prime is 2573956403. The next prime is 2573956559. The reversal of 2573956449 is 9446593752.

2573956449 is a `hidden beast` number, since 2 + 5 + 7 + 39 + 564 + 49 = 666.

It is not a de Polignac number, because 2573956449 - 2⁷ = 2573956321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2573956395 and 2573956404.

It is not an unprimeable number, because it can be changed into a prime (2573966449) 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 11 ways as a sum of consecutive naturals, for example, 33097 + ... + 79014.

Almost surely, 2^2573956449 is an apocalyptic number.

It is an amenable number.

2573956449 is a deficient number, since it is larger than the sum of its proper divisors (1145471263).

2573956449 is a wasteful number, since it uses less digits than its factorization.

2573956449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114668 (or 114665 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The square root of 2573956449 is about 50734.1743699452. The cubic root of 2573956449 is about 1370.4622108877.

The spelling of 2573956449 in words is "two billion, five hundred seventy-three million, nine hundred fifty-six thousand, four hundred forty-nine".