245222773 has 4 divisors (see below), whose sum is σ = 259647660. Its totient is φ = 230797888.

The previous prime is 245222749. The next prime is 245222779. The reversal of 245222773 is 377222542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120275089 + 124947684 = 10967^2 + 11178^2 .

It is a cyclic number.

It is not a de Polignac number, because 245222773 - 2²¹ = 243125621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245222779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7212418 + ... + 7212451.

It is an arithmetic number, because the mean of its divisors is an integer number (64911915).

Almost surely, 2^245222773 is an apocalyptic number.

It is an amenable number.

245222773 is a deficient number, since it is larger than the sum of its proper divisors (14424887).

245222773 is a wasteful number, since it uses less digits than its factorization.

245222773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14424886.

The product of its digits is 47040, while the sum is 34.

The square root of 245222773 is about 15659.5904480290. The cubic root of 245222773 is about 625.9220719443.

The spelling of 245222773 in words is "two hundred forty-five million, two hundred twenty-two thousand, seven hundred seventy-three".