2563630249 has 2 divisors, whose sum is σ = 2563630250. Its totient is φ = 2563630248.

The previous prime is 2563630241. The next prime is 2563630283. The reversal of 2563630249 is 9420363652.

2563630249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2242969600 + 320660649 = 47360^2 + 17907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563630249 - 2³ = 2563630241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2563630241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281815124 + 1281815125.

It is an arithmetic number, because the mean of its divisors is an integer number (1281815125).

Almost surely, 2^2563630249 is an apocalyptic number.

It is an amenable number.

2563630249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563630249 is an equidigital number, since it uses as much as digits as its factorization.

2563630249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 2563630249 is about 50632.3044014392. The cubic root of 2563630249 is about 1368.6270809351.

The spelling of 2563630249 in words is "two billion, five hundred sixty-three million, six hundred thirty thousand, two hundred forty-nine".