2545563908 has 6 divisors (see below), whose sum is σ = 4454736846. Its totient is φ = 1272781952.

The previous prime is 2545563907. The next prime is 2545563929. The reversal of 2545563908 is 8093655452.

It can be written as a sum of positive squares in only one way, i.e., 2146283584 + 399280324 = 46328^2 + 19982^2 .

It is a super-3 number, since 3×2545563908³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545563907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318195485 + ... + 318195492.

It is an arithmetic number, because the mean of its divisors is an integer number (742456141).

Almost surely, 2^2545563908 is an apocalyptic number.

It is an amenable number.

2545563908 is a deficient number, since it is larger than the sum of its proper divisors (1909172938).

2545563908 is a wasteful number, since it uses less digits than its factorization.

2545563908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636390981 (or 636390979 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The square root of 2545563908 is about 50453.5817162667. The cubic root of 2545563908 is about 1365.4045159792.

The spelling of 2545563908 in words is "two billion, five hundred forty-five million, five hundred sixty-three thousand, nine hundred eight".