2563783549 has 16 divisors (see below), whose sum is σ = 2751321600. Its totient is φ = 2380550400.

The previous prime is 2563783531. The next prime is 2563783559. The reversal of 2563783549 is 9453873652.

It is a cyclic number.

It is not a de Polignac number, because 2563783549 - 2¹⁹ = 2563259261 is a prime.

It is a super-2 number, since 2×2563783549² = 13145972172246070802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2563783496 and 2563783505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563783559) 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 15 ways as a sum of consecutive naturals, for example, 379132 + ... + 385834.

It is an arithmetic number, because the mean of its divisors is an integer number (171957600).

Almost surely, 2^2563783549 is an apocalyptic number.

It is an amenable number.

2563783549 is a deficient number, since it is larger than the sum of its proper divisors (187538051).

2563783549 is a wasteful number, since it uses less digits than its factorization.

2563783549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020.

The product of its digits is 5443200, while the sum is 52.

The square root of 2563783549 is about 50633.8182344567. The cubic root of 2563783549 is about 1368.6543607855.

The spelling of 2563783549 in words is "two billion, five hundred sixty-three million, seven hundred eighty-three thousand, five hundred forty-nine".