5006007581 has 4 divisors (see below), whose sum is σ = 5013941664. Its totient is φ = 4998073500.

The previous prime is 5006007557. The next prime is 5006007607. The reversal of 5006007581 is 1857006005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1857006005 = 5 ⋅371401201.

It is a cyclic number.

It is not a de Polignac number, because 5006007581 - 2²⁶ = 4938898717 is a prime.

It is a super-3 number, since 3×5006007581³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5006007541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3966095 + ... + 3967356.

It is an arithmetic number, because the mean of its divisors is an integer number (1253485416).

Almost surely, 2^5006007581 is an apocalyptic number.

It is an amenable number.

5006007581 is a deficient number, since it is larger than the sum of its proper divisors (7934083).

5006007581 is an equidigital number, since it uses as much as digits as its factorization.

5006007581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934082.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 5006007581 is about 70753.1453788452. The cubic root of 5006007581 is about 1710.6605271722.

The spelling of 5006007581 in words is "five billion, six million, seven thousand, five hundred eighty-one".