2564775495 has 40 divisors (see below), whose sum is σ = 4601271840. Its totient is φ = 1366787520.

The previous prime is 2564775487. The next prime is 2564775511. The reversal of 2564775495 is 5945774652.

It is a happy number.

2564775495 is a `hidden beast` number, since 2 + 56 + 47 + 7 + 549 + 5 = 666.

It is not a de Polignac number, because 2564775495 - 2³ = 2564775487 is a prime.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 917550 + ... + 920340.

It is an arithmetic number, because the mean of its divisors is an integer number (115031796).

Almost surely, 2^2564775495 is an apocalyptic number.

2564775495 is a deficient number, since it is larger than the sum of its proper divisors (2036496345).

2564775495 is a wasteful number, since it uses less digits than its factorization.

2564775495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077 (or 5068 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The square root of 2564775495 is about 50643.6125784881. The cubic root of 2564775495 is about 1368.8308520451.

The spelling of 2564775495 in words is "two billion, five hundred sixty-four million, seven hundred seventy-five thousand, four hundred ninety-five".