2555612641 has 8 divisors (see below), whose sum is σ = 2570463720. Its totient is φ = 2540780928.

The previous prime is 2555612621. The next prime is 2555612693. The reversal of 2555612641 is 1462165552.

It can be written as a sum of positive squares in 4 ways, for example, as 412293025 + 2143319616 = 20305^2 + 46296^2 .

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 2555612641 - 2¹¹ = 2555610593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2555612641.

It is not an unprimeable number, because it can be changed into a prime (2555612611) 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, 322515 + ... + 330343.

It is an arithmetic number, because the mean of its divisors is an integer number (321307965).

Almost surely, 2^2555612641 is an apocalyptic number.

It is an amenable number.

2555612641 is a deficient number, since it is larger than the sum of its proper divisors (14851079).

2555612641 is a wasteful number, since it uses less digits than its factorization.

2555612641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683.

The product of its digits is 72000, while the sum is 37.

The square root of 2555612641 is about 50553.0675726014. The cubic root of 2555612641 is about 1367.1988231459.

The spelling of 2555612641 in words is "two billion, five hundred fifty-five million, six hundred twelve thousand, six hundred forty-one".