8252055621 has 54 divisors (see below), whose sum is σ = 12680576454. Its totient is φ = 5170308000.

The previous prime is 8252055619. The next prime is 8252055641. The reversal of 8252055621 is 1265502528.

It is a happy number.

8252055621 is a `hidden beast` number, since 8 + 2 + 5 + 20 + 5 + 5 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8170352100 + 81703521 = 90390^2 + 9039^2 .

It is not a de Polignac number, because 8252055621 - 2¹ = 8252055619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8252055641) 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 53 ways as a sum of consecutive naturals, for example, 62992726 + ... + 62992856.

Almost surely, 2^8252055621 is an apocalyptic number.

It is an amenable number.

8252055621 is a deficient number, since it is larger than the sum of its proper divisors (4428520833).

8252055621 is a wasteful number, since it uses less digits than its factorization.

8252055621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 8252055621 is about 90840.8257393117. The cubic root of 8252055621 is about 2020.7878197653.

The spelling of 8252055621 in words is "eight billion, two hundred fifty-two million, fifty-five thousand, six hundred twenty-one".