245222455 has 8 divisors (see below), whose sum is σ = 309754800. Its totient is φ = 185852736.

The previous prime is 245222449. The next prime is 245222459. The reversal of 245222455 is 554222542.

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 245222455 - 2²¹ = 243125303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245222459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290550 + ... + 1290739.

It is an arithmetic number, because the mean of its divisors is an integer number (38719350).

Almost surely, 2^245222455 is an apocalyptic number.

245222455 is a deficient number, since it is larger than the sum of its proper divisors (64532345).

245222455 is a wasteful number, since it uses less digits than its factorization.

245222455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581313.

The product of its digits is 32000, while the sum is 31.

The square root of 245222455 is about 15659.5802945034. The cubic root of 245222455 is about 625.9218013831.

Adding to 245222455 its reverse (554222542), we get a palindrome (799444997).

The spelling of 245222455 in words is "two hundred forty-five million, two hundred twenty-two thousand, four hundred fifty-five".