5550551001 has 10 divisors (see below), whose sum is σ = 8291563962. Its totient is φ = 3700367280.

The previous prime is 5550550987. The next prime is 5550551009. The reversal of 5550551001 is 1001550555.

5550551001 is a `hidden beast` number, since 5 + 550 + 5 + 5 + 100 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2978539776 + 2572011225 = 54576^2 + 50715^2 .

It is not a de Polignac number, because 5550551001 - 2⁶ = 5550550937 is a prime.

It is a super-4 number, since 4×5550551001⁴ (a number of 40 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (5550551009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34262580 + ... + 34262741.

Almost surely, 2^5550551001 is an apocalyptic number.

It is an amenable number.

5550551001 is a deficient number, since it is larger than the sum of its proper divisors (2741012961).

5550551001 is an equidigital number, since it uses as much as digits as its factorization.

5550551001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68525333 (or 68525324 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 5550551001 is about 74502.0201135513. The cubic root of 5550551001 is about 1770.5656422567.

The spelling of 5550551001 in words is "five billion, five hundred fifty million, five hundred fifty-one thousand, one".