2564600255 has 16 divisors (see below), whose sum is σ = 3531893760. Its totient is φ = 1751219232.

The previous prime is 2564600251. The next prime is 2564600273. The reversal of 2564600255 is 5520064652.

It is not a de Polignac number, because 2564600255 - 2² = 2564600251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564600251) 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 15 ways as a sum of consecutive naturals, for example, 144929 + ... + 161658.

It is an arithmetic number, because the mean of its divisors is an integer number (220743360).

Almost surely, 2^2564600255 is an apocalyptic number.

2564600255 is a deficient number, since it is larger than the sum of its proper divisors (967293505).

2564600255 is a wasteful number, since it uses less digits than its factorization.

2564600255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306838.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2564600255 is about 50641.8824195942. The cubic root of 2564600255 is about 1368.7996759075.

The spelling of 2564600255 in words is "two billion, five hundred sixty-four million, six hundred thousand, two hundred fifty-five".