1722225530 has 8 divisors (see below), whose sum is σ = 3100005972. Its totient is φ = 688890208.

The previous prime is 1722225497. The next prime is 1722225539. The reversal of 1722225530 is 355222271.

It can be written as a sum of positive squares in 2 ways, for example, as 1716527761 + 5697769 = 41431^2 + 2387^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1722225493 and 1722225502.

It is not an unprimeable number, because it can be changed into a prime (1722225539) 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 3 ways as a sum of consecutive naturals, for example, 86111267 + ... + 86111286.

Almost surely, 2^1722225530 is an apocalyptic number.

1722225530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1722225530 is a deficient number, since it is larger than the sum of its proper divisors (1377780442).

1722225530 is a wasteful number, since it uses less digits than its factorization.

1722225530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172222560.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 1722225530 is about 41499.7051796757. The cubic root of 1722225530 is about 1198.6618254250.

The spelling of 1722225530 in words is "one billion, seven hundred twenty-two million, two hundred twenty-five thousand, five hundred thirty".