2563517149 has 2 divisors, whose sum is σ = 2563517150. Its totient is φ = 2563517148.

The previous prime is 2563517119. The next prime is 2563517171. The reversal of 2563517149 is 9417153652.

2563517149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2397571225 + 165945924 = 48965^2 + 12882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563517149 - 2¹⁵ = 2563484381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2563517119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281758574 + 1281758575.

It is an arithmetic number, because the mean of its divisors is an integer number (1281758575).

Almost surely, 2^2563517149 is an apocalyptic number.

It is an amenable number.

2563517149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2563517149 is an equidigital number, since it uses as much as digits as its factorization.

2563517149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The square root of 2563517149 is about 50631.1875132314. The cubic root of 2563517149 is about 1368.6069540077.

The spelling of 2563517149 in words is "two billion, five hundred sixty-three million, five hundred seventeen thousand, one hundred forty-nine".