4006550331 has 16 divisors (see below), whose sum is σ = 6783577600. Its totient is φ = 2289457224.

The previous prime is 4006550321. The next prime is 4006550369. The reversal of 4006550331 is 1330556004.

4006550331 is a `hidden beast` number, since 4 + 0 + 0 + 655 + 0 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 4006550331 - 2²² = 4002356027 is a prime.

It is a super-2 number, since 2×4006550331² = 32104891109672419122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4006550295 and 4006550304.

It is not an unprimeable number, because it can be changed into a prime (4006550321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10599151 + ... + 10599528.

It is an arithmetic number, because the mean of its divisors is an integer number (423973600).

Almost surely, 2^4006550331 is an apocalyptic number.

4006550331 is a deficient number, since it is larger than the sum of its proper divisors (2777027269).

4006550331 is a wasteful number, since it uses less digits than its factorization.

4006550331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21198695 (or 21198689 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 4006550331 is about 63297.3169336584. The cubic root of 4006550331 is about 1588.2670796028.

The spelling of 4006550331 in words is "four billion, six million, five hundred fifty thousand, three hundred thirty-one".