5665551001 has 8 divisors (see below), whose sum is σ = 6189738624. Its totient is φ = 5142886320.

The previous prime is 5665550993. The next prime is 5665551029. The reversal of 5665551001 is 1001555665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5665551001 - 2³ = 5665550993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665551601) 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, 372945 + ... + 387838.

It is an arithmetic number, because the mean of its divisors is an integer number (773717328).

Almost surely, 2^5665551001 is an apocalyptic number.

It is an amenable number.

5665551001 is a deficient number, since it is larger than the sum of its proper divisors (524187623).

5665551001 is a wasteful number, since it uses less digits than its factorization.

5665551001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761471.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 5665551001 is about 75269.8545302168. The cubic root of 5665551001 is about 1782.7100704418.

The spelling of 5665551001 in words is "five billion, six hundred sixty-five million, five hundred fifty-one thousand, one".