265075671025 has 135 divisors (see below), whose sum is σ = 388455837105. Its totient is φ = 179416670400.

The previous prime is 265075671023. The next prime is 265075671053. The reversal of 265075671025 is 520176570562.

The square root of 265075671025 is 514855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 25163794161 + 239911876864 = 158631^2 + 489808^2 .

It is not a de Polignac number, because 265075671025 - 2¹ = 265075671023 is a prime.

It is a super-2 number, since 2×265075671025² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265075671023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 7164207307 + ... + 7164207343.

Almost surely, 2^265075671025 is an apocalyptic number.

265075671025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265075671025 is the 514855-th square number.

265075671025 is the 257428-th centered octagonal number.

It is an amenable number.

265075671025 is a deficient number, since it is larger than the sum of its proper divisors (123380166080).

265075671025 is an frugal number, since it uses more digits than its factorization.

265075671025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 265075671025 in words is "two hundred sixty-five billion, seventy-five million, six hundred seventy-one thousand, twenty-five".