1765272225 has 24 divisors (see below), whose sum is σ = 2923514272. Its totient is φ = 939888000.

The previous prime is 1765272217. The next prime is 1765272227. The reversal of 1765272225 is 5222725671.

It is not a de Polignac number, because 1765272225 - 2³ = 1765272217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1765272227) 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 23 ways as a sum of consecutive naturals, for example, 25494 + ... + 64656.

Almost surely, 2^1765272225 is an apocalyptic number.

1765272225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1765272225 is a deficient number, since it is larger than the sum of its proper divisors (1158242047).

1765272225 is a wasteful number, since it uses less digits than its factorization.

1765272225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39777 (or 39772 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 1765272225 is about 42015.1428058980. The cubic root of 1765272225 is about 1208.5665298108.

Adding to 1765272225 its reverse (5222725671), we get a palindrome (6987997896).

The spelling of 1765272225 in words is "one billion, seven hundred sixty-five million, two hundred seventy-two thousand, two hundred twenty-five".