2605477563 has 24 divisors (see below), whose sum is σ = 4179734640. Its totient is φ = 1603368000.

The previous prime is 2605477561. The next prime is 2605477621. The reversal of 2605477563 is 3657745062.

It is not a de Polignac number, because 2605477563 - 2¹ = 2605477561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2605477561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280938 + ... + 290063.

It is an arithmetic number, because the mean of its divisors is an integer number (174155610).

Almost surely, 2^2605477563 is an apocalyptic number.

2605477563 is a deficient number, since it is larger than the sum of its proper divisors (1574257077).

2605477563 is a wasteful number, since it uses less digits than its factorization.

2605477563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571036 (or 571017 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The square root of 2605477563 is about 51043.8788004987. The cubic root of 2605477563 is about 1376.0338341450.

The spelling of 2605477563 in words is "two billion, six hundred five million, four hundred seventy-seven thousand, five hundred sixty-three".