55221035 has 8 divisors (see below), whose sum is σ = 66873840. Its totient is φ = 43771104.

The previous prime is 55221007. The next prime is 55221037. The reversal of 55221035 is 53012255.

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 55221035 - 2¹⁴ = 55204651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55221035.

It is not an unprimeable number, because it can be changed into a prime (55221037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50117 + ... + 51206.

It is an arithmetic number, because the mean of its divisors is an integer number (8359230).

Almost surely, 2^55221035 is an apocalyptic number.

55221035 is a deficient number, since it is larger than the sum of its proper divisors (11652805).

55221035 is a wasteful number, since it uses less digits than its factorization.

55221035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101437.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55221035 is about 7431.0857214811. The cubic root of 55221035 is about 380.8040109555.

The spelling of 55221035 in words is "fifty-five million, two hundred twenty-one thousand, thirty-five".