4055521001 has 8 divisors (see below), whose sum is σ = 4637997504. Its totient is φ = 3473823600.

The previous prime is 4055520983. The next prime is 4055521013. The reversal of 4055521001 is 1001255504.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4055521001 - 2¹⁰ = 4055519977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4055521021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183575 + ... + 204476.

It is an arithmetic number, because the mean of its divisors is an integer number (579749688).

Almost surely, 2^4055521001 is an apocalyptic number.

It is an amenable number.

4055521001 is a deficient number, since it is larger than the sum of its proper divisors (582476503).

4055521001 is a wasteful number, since it uses less digits than its factorization.

4055521001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389551.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 4055521001 is about 63682.9726143496. The cubic root of 4055521001 is about 1594.7118383521.

Adding to 4055521001 its reverse (1001255504), we get a palindrome (5056776505).

The spelling of 4055521001 in words is "four billion, fifty-five million, five hundred twenty-one thousand, one".