55224530 has 16 divisors (see below), whose sum is σ = 101520000. Its totient is φ = 21619632.

The previous prime is 55224529. The next prime is 55224571. The reversal of 55224530 is 3542255.

It is a self number, because there is not a number n which added to its sum of digits gives 55224530.

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, 58280 + ... + 59219.

It is an arithmetic number, because the mean of its divisors is an integer number (6345000).

Almost surely, 2^55224530 is an apocalyptic number.

55224530 is a deficient number, since it is larger than the sum of its proper divisors (46295470).

55224530 is a wasteful number, since it uses less digits than its factorization.

55224530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117553.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 55224530 is about 7431.3208785518. The cubic root of 55224530 is about 380.8120446209.

Adding to 55224530 its reverse (3542255), we get a palindrome (58766785).

The spelling of 55224530 in words is "fifty-five million, two hundred twenty-four thousand, five hundred thirty".