8055621 has 12 divisors (see below), whose sum is σ = 13298272. Its totient is φ = 4603176.

The previous prime is 8055617. The next prime is 8055631. The reversal of 8055621 is 1265508.

It is not a de Polignac number, because 8055621 - 2² = 8055617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8055631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63871 + ... + 63996.

Almost surely, 2^8055621 is an apocalyptic number.

It is an amenable number.

8055621 is a deficient number, since it is larger than the sum of its proper divisors (5242651).

8055621 is a wasteful number, since it uses less digits than its factorization.

8055621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127880 (or 127877 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 8055621 is about 2838.2425900546. The cubic root of 8055621 is about 200.4624382635.

The spelling of 8055621 in words is "eight million, fifty-five thousand, six hundred twenty-one".