265234728225 has 24 divisors (see below), whose sum is σ = 452667273472. Its totient is φ = 136895342400.

The previous prime is 265234728223. The next prime is 265234728257. The reversal of 265234728225 is 522827432562.

It is not a de Polignac number, because 265234728225 - 2¹ = 265234728223 is a prime.

It is a super-2 number, since 2×265234728225² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265234728223) 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, 57037402 + ... + 57042051.

Almost surely, 2^265234728225 is an apocalyptic number.

265234728225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265234728225 is a deficient number, since it is larger than the sum of its proper divisors (187432545247).

265234728225 is a wasteful number, since it uses less digits than its factorization.

265234728225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114079497 (or 114079492 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 48.

The spelling of 265234728225 in words is "two hundred sixty-five billion, two hundred thirty-four million, seven hundred twenty-eight thousand, two hundred twenty-five".