4021325305 has 8 divisors (see below), whose sum is σ = 4943287944. Its totient is φ = 3138595200.

The previous prime is 4021325293. The next prime is 4021325323. The reversal of 4021325305 is 5035231204.

It can be written as a sum of positive squares in 4 ways, for example, as 25441936 + 3995883369 = 5044^2 + 63213^2 .

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

It is not a de Polignac number, because 4021325305 - 2¹⁹ = 4020801017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021325305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9807906 + ... + 9808315.

It is an arithmetic number, because the mean of its divisors is an integer number (617910993).

Almost surely, 2^4021325305 is an apocalyptic number.

It is an amenable number.

4021325305 is a deficient number, since it is larger than the sum of its proper divisors (921962639).

4021325305 is a wasteful number, since it uses less digits than its factorization.

4021325305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19616267.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 4021325305 is about 63413.9204355006. The cubic root of 4021325305 is about 1590.2170378673.

Adding to 4021325305 its reverse (5035231204), we get a palindrome (9056556509).

The spelling of 4021325305 in words is "four billion, twenty-one million, three hundred twenty-five thousand, three hundred five".