5581866007 has 4 divisors (see below), whose sum is σ = 5594466600. Its totient is φ = 5569265416.

The previous prime is 5581865987. The next prime is 5581866013. The reversal of 5581866007 is 7006681855.

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 5581866007 - 2⁷ = 5581865879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581866047) 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, 6299632 + ... + 6300517.

It is an arithmetic number, because the mean of its divisors is an integer number (1398616650).

Almost surely, 2^5581866007 is an apocalyptic number.

5581866007 is a deficient number, since it is larger than the sum of its proper divisors (12600593).

5581866007 is a wasteful number, since it uses less digits than its factorization.

5581866007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600592.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 5581866007 is about 74711.8866513221. The cubic root of 5581866007 is about 1773.8891158614.

The spelling of 5581866007 in words is "five billion, five hundred eighty-one million, eight hundred sixty-six thousand, seven".