2564272655 has 48 divisors (see below), whose sum is σ = 3738661920. Its totient is φ = 1681360128.

The previous prime is 2564272651. The next prime is 2564272687. The reversal of 2564272655 is 5562724652.

It is not a de Polignac number, because 2564272655 - 2² = 2564272651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564272651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 758549 + ... + 761921.

It is an arithmetic number, because the mean of its divisors is an integer number (77888790).

Almost surely, 2^2564272655 is an apocalyptic number.

2564272655 is a deficient number, since it is larger than the sum of its proper divisors (1174389265).

2564272655 is a wasteful number, since it uses less digits than its factorization.

2564272655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528 (or 3521 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 44.

The square root of 2564272655 is about 50638.6478393726. The cubic root of 2564272655 is about 1368.7413902977.

The spelling of 2564272655 in words is "two billion, five hundred sixty-four million, two hundred seventy-two thousand, six hundred fifty-five".