5587081921 has 4 divisors (see below), whose sum is σ = 5593215744. Its totient is φ = 5580948100.

The previous prime is 5587081873. The next prime is 5587081957. The reversal of 5587081921 is 1291807855.

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.

It is a cyclic number.

It is not a de Polignac number, because 5587081921 - 2⁷ = 5587081793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5587081021) 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, 3065545 + ... + 3067366.

It is an arithmetic number, because the mean of its divisors is an integer number (1398303936).

Almost surely, 2^5587081921 is an apocalyptic number.

It is an amenable number.

5587081921 is a deficient number, since it is larger than the sum of its proper divisors (6133823).

5587081921 is an equidigital number, since it uses as much as digits as its factorization.

5587081921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133822.

The product of its (nonzero) digits is 201600, while the sum is 46.

The square root of 5587081921 is about 74746.7853556258. The cubic root of 5587081921 is about 1774.4414743144.

The spelling of 5587081921 in words is "five billion, five hundred eighty-seven million, eighty-one thousand, nine hundred twenty-one".