265540426 has 16 divisors (see below), whose sum is σ = 405993600. Its totient is φ = 130228560.

The previous prime is 265540421. The next prime is 265540427. The reversal of 265540426 is 624045562.

It is a super-2 number, since 2×265540426² = 141023435680522952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 265540391 and 265540400.

It is not an unprimeable number, because it can be changed into a prime (265540421) 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 7 ways as a sum of consecutive naturals, for example, 23560 + ... + 32956.

It is an arithmetic number, because the mean of its divisors is an integer number (25374600).

Almost surely, 2^265540426 is an apocalyptic number.

265540426 is a deficient number, since it is larger than the sum of its proper divisors (140453174).

265540426 is a wasteful number, since it uses less digits than its factorization.

265540426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 265540426 is about 16295.4111945664. The cubic root of 265540426 is about 642.7521665577.

Adding to 265540426 its reverse (624045562), we get a palindrome (889585988).

The spelling of 265540426 in words is "two hundred sixty-five million, five hundred forty thousand, four hundred twenty-six".