3506025621 has 16 divisors (see below), whose sum is σ = 5345427584. Its totient is φ = 2002351104.

The previous prime is 3506025587. The next prime is 3506025629. The reversal of 3506025621 is 1265206053.

It is not a de Polignac number, because 3506025621 - 2⁹ = 3506025109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506025629) 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 15 ways as a sum of consecutive naturals, for example, 5236 + ... + 83901.

It is an arithmetic number, because the mean of its divisors is an integer number (334089224).

Almost surely, 2^3506025621 is an apocalyptic number.

It is an amenable number.

3506025621 is a deficient number, since it is larger than the sum of its proper divisors (1839401963).

3506025621 is a wasteful number, since it uses less digits than its factorization.

3506025621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91020.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3506025621 is about 59211.7017235614. The cubic root of 3506025621 is about 1519.1652880351.

The spelling of 3506025621 in words is "three billion, five hundred six million, twenty-five thousand, six hundred twenty-one".