55924221 has 8 divisors (see below), whose sum is σ = 74659104. Its totient is φ = 37236080.

The previous prime is 55924213. The next prime is 55924229. The reversal of 55924221 is 12242955.

It is an interprime number because it is at equal distance from previous prime (55924213) and next prime (55924229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55924221 - 2³ = 55924213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55924229) 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 7 ways as a sum of consecutive naturals, for example, 8790 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (9332388).

Almost surely, 2^55924221 is an apocalyptic number.

It is an amenable number.

55924221 is a deficient number, since it is larger than the sum of its proper divisors (18734883).

55924221 is a wasteful number, since it uses less digits than its factorization.

55924221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23371.

The product of its digits is 7200, while the sum is 30.

The square root of 55924221 is about 7478.2498621001. The cubic root of 55924221 is about 382.4135872119.

The spelling of 55924221 in words is "fifty-five million, nine hundred twenty-four thousand, two hundred twenty-one".