5056640261 has 8 divisors (see below), whose sum is σ = 5224410240. Its totient is φ = 4890507408.

The previous prime is 5056640257. The next prime is 5056640317. The reversal of 5056640261 is 1620466505.

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 5056640261 - 2² = 5056640257 is a prime.

It is a super-2 number, since 2×5056640261² = 51139221458332296242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5056640231) 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, 403001 + ... + 415358.

It is an arithmetic number, because the mean of its divisors is an integer number (653051280).

Almost surely, 2^5056640261 is an apocalyptic number.

It is an amenable number.

5056640261 is a deficient number, since it is larger than the sum of its proper divisors (167769979).

5056640261 is a wasteful number, since it uses less digits than its factorization.

5056640261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818563.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 5056640261 is about 71110.0573829047. The cubic root of 5056640261 is about 1716.4086165337.

The spelling of 5056640261 in words is "five billion, fifty-six million, six hundred forty thousand, two hundred sixty-one".