6581422051 has 4 divisors (see below), whose sum is σ = 6592410000. Its totient is φ = 6570434104.

The previous prime is 6581422039. The next prime is 6581422073. The reversal of 6581422051 is 1502241856.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6581422051 - 2¹³ = 6581413859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6581421998 and 6581422016.

It is not an unprimeable number, because it can be changed into a prime (6581422031) 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, 5493076 + ... + 5494273.

It is an arithmetic number, because the mean of its divisors is an integer number (1648102500).

Almost surely, 2^6581422051 is an apocalyptic number.

6581422051 is a deficient number, since it is larger than the sum of its proper divisors (10987949).

6581422051 is a wasteful number, since it uses less digits than its factorization.

6581422051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987948.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 6581422051 is about 81125.9640990478. The cubic root of 6581422051 is about 1874.0157964572.

The spelling of 6581422051 in words is "six billion, five hundred eighty-one million, four hundred twenty-two thousand, fifty-one".