4005551001 has 16 divisors (see below), whose sum is σ = 5372870400. Its totient is φ = 2654346240.

The previous prime is 4005550979. The next prime is 4005551023. The reversal of 4005551001 is 1001555004.

It is an interprime number because it is at equal distance from previous prime (4005550979) and next prime (4005551023).

It is not a de Polignac number, because 4005551001 - 2¹³ = 4005542809 is a prime.

It is a super-2 number, since 2×4005551001² = 32088877643224204002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4005551201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359551 + ... + 370523.

It is an arithmetic number, because the mean of its divisors is an integer number (335804400).

Almost surely, 2^4005551001 is an apocalyptic number.

It is an amenable number.

4005551001 is a deficient number, since it is larger than the sum of its proper divisors (1367319399).

4005551001 is a wasteful number, since it uses less digits than its factorization.

4005551001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11696.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 4005551001 is about 63289.4225048704. The cubic root of 4005551001 is about 1588.1350179546.

The spelling of 4005551001 in words is "four billion, five million, five hundred fifty-one thousand, one".