2564557105 has 8 divisors (see below), whose sum is σ = 3357238464. Its totient is φ = 1865132400.

The previous prime is 2564557081. The next prime is 2564557141. The reversal of 2564557105 is 5017554652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2564557105 - 2¹³ = 2564548913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23314101 + ... + 23314210.

It is an arithmetic number, because the mean of its divisors is an integer number (419654808).

Almost surely, 2^2564557105 is an apocalyptic number.

It is an amenable number.

2564557105 is a deficient number, since it is larger than the sum of its proper divisors (792681359).

2564557105 is a wasteful number, since it uses less digits than its factorization.

2564557105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46628327.

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 2564557105 is about 50641.4563870353. The cubic root of 2564557105 is about 1368.7919990727.

The spelling of 2564557105 in words is "two billion, five hundred sixty-four million, five hundred fifty-seven thousand, one hundred five".