4250021155 has 8 divisors (see below), whose sum is σ = 5126451552. Its totient is φ = 3382399488.

The previous prime is 4250021101. The next prime is 4250021159. The reversal of 4250021155 is 5511200524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4250021155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4250021159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2201119 + ... + 2203048.

It is an arithmetic number, because the mean of its divisors is an integer number (640806444).

Almost surely, 2^4250021155 is an apocalyptic number.

4250021155 is a deficient number, since it is larger than the sum of its proper divisors (876430397).

4250021155 is a wasteful number, since it uses less digits than its factorization.

4250021155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404365.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 4250021155 is about 65192.1863032680. The cubic root of 4250021155 is about 1619.8085882416.

Adding to 4250021155 its reverse (5511200524), we get a palindrome (9761221679).

The spelling of 4250021155 in words is "four billion, two hundred fifty million, twenty-one thousand, one hundred fifty-five".