2555566801 has 8 divisors (see below), whose sum is σ = 2637083264. Its totient is φ = 2474705520.

The previous prime is 2555566799. The next prime is 2555566817. The reversal of 2555566801 is 1086655552.

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

It is a cyclic number.

It is not a de Polignac number, because 2555566801 - 2¹ = 2555566799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555566831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155865 + ... + 171478.

It is an arithmetic number, because the mean of its divisors is an integer number (329635408).

Almost surely, 2^2555566801 is an apocalyptic number.

It is an amenable number.

2555566801 is a deficient number, since it is larger than the sum of its proper divisors (81516463).

2555566801 is a wasteful number, since it uses less digits than its factorization.

2555566801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327591.

The product of its (nonzero) digits is 360000, while the sum is 43.

The square root of 2555566801 is about 50552.6141856185. The cubic root of 2555566801 is about 1367.1906486195.

The spelling of 2555566801 in words is "two billion, five hundred fifty-five million, five hundred sixty-six thousand, eight hundred one".