63221055 has 16 divisors (see below), whose sum is σ = 101593440. Its totient is φ = 33571328.

The previous prime is 63221047. The next prime is 63221099. The reversal of 63221055 is 55012236.

It is a cyclic number.

It is not a de Polignac number, because 63221055 - 2³ = 63221047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5550 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (6349590).

Almost surely, 2^63221055 is an apocalyptic number.

63221055 is a deficient number, since it is larger than the sum of its proper divisors (38372385).

63221055 is a wasteful number, since it uses less digits than its factorization.

63221055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18330.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 63221055 is about 7951.1668954940. The cubic root of 63221055 is about 398.3705693187.

The spelling of 63221055 in words is "sixty-three million, two hundred twenty-one thousand, fifty-five".