2722457245 has 4 divisors (see below), whose sum is σ = 3266948700. Its totient is φ = 2177965792.

The previous prime is 2722457239. The next prime is 2722457263. The reversal of 2722457245 is 5427542272.

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 1372776601 + 1349680644 = 37051^2 + 36738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2722457245 - 2⁷ = 2722457117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2722457198 and 2722457207.

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, 272245720 + ... + 272245729.

It is an arithmetic number, because the mean of its divisors is an integer number (816737175).

Almost surely, 2^2722457245 is an apocalyptic number.

It is an amenable number.

2722457245 is a deficient number, since it is larger than the sum of its proper divisors (544491455).

2722457245 is an equidigital number, since it uses as much as digits as its factorization.

2722457245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544491454.

The product of its digits is 313600, while the sum is 40.

The square root of 2722457245 is about 52177.1716845595. The cubic root of 2722457245 is about 1396.3266362999.

The spelling of 2722457245 in words is "two billion, seven hundred twenty-two million, four hundred fifty-seven thousand, two hundred forty-five".