1722252705 has 8 divisors (see below), whose sum is σ = 2755604352. Its totient is φ = 918534768.

The previous prime is 1722252691. The next prime is 1722252733. The reversal of 1722252705 is 5072522271.

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

It is not a de Polignac number, because 1722252705 - 2⁴ = 1722252689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57408409 + ... + 57408438.

It is an arithmetic number, because the mean of its divisors is an integer number (344450544).

Almost surely, 2^1722252705 is an apocalyptic number.

1722252705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1722252705 is a deficient number, since it is larger than the sum of its proper divisors (1033351647).

1722252705 is a wasteful number, since it uses less digits than its factorization.

1722252705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114816855.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 1722252705 is about 41500.0325903486. The cubic root of 1722252705 is about 1198.6681299543.

Adding to 1722252705 its reverse (5072522271), we get a palindrome (6794774976).

The spelling of 1722252705 in words is "one billion, seven hundred twenty-two million, two hundred fifty-two thousand, seven hundred five".