2621225171 has 4 divisors (see below), whose sum is σ = 2621373312. Its totient is φ = 2621077032.

The previous prime is 2621225149. The next prime is 2621225197. The reversal of 2621225171 is 1715221262.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2621225171 - 2¹⁰ = 2621224147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2621225071) 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 3 ways as a sum of consecutive naturals, for example, 43256 + ... + 84341.

It is an arithmetic number, because the mean of its divisors is an integer number (655343328).

Almost surely, 2^2621225171 is an apocalyptic number.

2621225171 is a deficient number, since it is larger than the sum of its proper divisors (148141).

2621225171 is a wasteful number, since it uses less digits than its factorization.

2621225171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148140.

The product of its digits is 3360, while the sum is 29.

The square root of 2621225171 is about 51197.9020175632. The cubic root of 2621225171 is about 1378.8005349787.

The spelling of 2621225171 in words is "two billion, six hundred twenty-one million, two hundred twenty-five thousand, one hundred seventy-one".