4021250055 has 32 divisors (see below), whose sum is σ = 6672749760. Its totient is φ = 2065459200.

The previous prime is 4021250053. The next prime is 4021250059. The reversal of 4021250055 is 5500521204.

It is a happy number.

It is not a de Polignac number, because 4021250055 - 2¹ = 4021250053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021250053) 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 31 ways as a sum of consecutive naturals, for example, 162909 + ... + 185961.

It is an arithmetic number, because the mean of its divisors is an integer number (208523430).

Almost surely, 2^4021250055 is an apocalyptic number.

4021250055 is a deficient number, since it is larger than the sum of its proper divisors (2651499705).

4021250055 is a wasteful number, since it uses less digits than its factorization.

4021250055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23491.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 4021250055 is about 63413.3271087395. The cubic root of 4021250055 is about 1590.2071187014.

Adding to 4021250055 its reverse (5500521204), we get a palindrome (9521771259).

The spelling of 4021250055 in words is "four billion, twenty-one million, two hundred fifty thousand, fifty-five".