1722075225 has 24 divisors (see below), whose sum is σ = 3066178752. Its totient is φ = 847790400.

The previous prime is 1722075221. The next prime is 1722075239. The reversal of 1722075225 is 5225702271.

It is not a de Polignac number, because 1722075225 - 2² = 1722075221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1722075221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 882141 + ... + 884090.

It is an arithmetic number, because the mean of its divisors is an integer number (127757448).

Almost surely, 2^1722075225 is an apocalyptic number.

1722075225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1722075225 is a deficient number, since it is larger than the sum of its proper divisors (1344103527).

1722075225 is a wasteful number, since it uses less digits than its factorization.

1722075225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766257 (or 1766252 counting only the distinct ones).

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

The square root of 1722075225 is about 41497.8942236832. The cubic root of 1722075225 is about 1198.6269538583.

Adding to 1722075225 its reverse (5225702271), we get a palindrome (6947777496).

The spelling of 1722075225 in words is "one billion, seven hundred twenty-two million, seventy-five thousand, two hundred twenty-five".