55228270 has 8 divisors (see below), whose sum is σ = 99410904. Its totient is φ = 22091304.

The previous prime is 55228253. The next prime is 55228319. The reversal of 55228270 is 7282255.

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

It is a congruent number.

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, 2761404 + ... + 2761423.

It is an arithmetic number, because the mean of its divisors is an integer number (12426363).

Almost surely, 2^55228270 is an apocalyptic number.

55228270 is a deficient number, since it is larger than the sum of its proper divisors (44182634).

55228270 is a wasteful number, since it uses less digits than its factorization.

55228270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522834.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 55228270 is about 7431.5725119251. The cubic root of 55228270 is about 380.8206410718.

The spelling of 55228270 in words is "fifty-five million, two hundred twenty-eight thousand, two hundred seventy".