55224545 has 8 divisors (see below), whose sum is σ = 69757440. Its totient is φ = 41854320.

The previous prime is 55224529. The next prime is 55224571. The reversal of 55224545 is 54542255.

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

It is not a de Polignac number, because 55224545 - 2⁴ = 55224529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290561 + ... + 290750.

It is an arithmetic number, because the mean of its divisors is an integer number (8719680).

Almost surely, 2^55224545 is an apocalyptic number.

It is an amenable number.

55224545 is a deficient number, since it is larger than the sum of its proper divisors (14532895).

55224545 is a wasteful number, since it uses less digits than its factorization.

55224545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581335.

The product of its digits is 40000, while the sum is 32.

The square root of 55224545 is about 7431.3218877936. The cubic root of 55224545 is about 380.8120790994.

The spelling of 55224545 in words is "fifty-five million, two hundred twenty-four thousand, five hundred forty-five".