55070224 has 20 divisors (see below), whose sum is σ = 116398800. Its totient is φ = 25031840.

The previous prime is 55070203. The next prime is 55070243. The reversal of 55070224 is 42207055.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156274 + ... + 156625.

It is an arithmetic number, because the mean of its divisors is an integer number (5819940).

Almost surely, 2^55070224 is an apocalyptic number.

It is an amenable number.

55070224 is an abundant number, since it is smaller than the sum of its proper divisors (61328576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55070224 is a wasteful number, since it uses less digits than its factorization.

55070224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312918 (or 312912 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 55070224 is about 7420.9314779211. The cubic root of 55070224 is about 380.4570308968.

Adding to 55070224 its reverse (42207055), we get a palindrome (97277279).

The spelling of 55070224 in words is "fifty-five million, seventy thousand, two hundred twenty-four".