1722500000 has 192 divisors, whose sum is σ = 4651159968. Its totient is φ = 624000000.

The previous prime is 1722499997. The next prime is 1722500033. The reversal of 1722500000 is 52271.

1722500000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 1664313616 + 58186384 = 40796^2 + 7628^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32499974 + ... + 32500026.

Almost surely, 2^1722500000 is an apocalyptic number.

1722500000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2325579984).

1722500000 is an abundant number, since it is smaller than the sum of its proper divisors (2928659968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722500000 is an frugal number, since it uses more digits than its factorization.

1722500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 1722500000 is about 41503.0119388943. The cubic root of 1722500000 is about 1198.7254987031.

Adding to 1722500000 its reverse (52271), we get a palindrome (1722552271).

The spelling of 1722500000 in words is "one billion, seven hundred twenty-two million, five hundred thousand".