265530423 has 16 divisors (see below), whose sum is σ = 371715840. Its totient is φ = 168277824.

The previous prime is 265530413. The next prime is 265530427. The reversal of 265530423 is 324035562.

It is not a de Polignac number, because 265530423 - 2⁶ = 265530359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265530427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558 + ... + 23051.

It is an arithmetic number, because the mean of its divisors is an integer number (23232240).

Almost surely, 2^265530423 is an apocalyptic number.

265530423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

265530423 is a deficient number, since it is larger than the sum of its proper divisors (106185417).

265530423 is a wasteful number, since it uses less digits than its factorization.

265530423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23798.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 265530423 is about 16295.1042647784. The cubic root of 265530423 is about 642.7440955573.

Adding to 265530423 its reverse (324035562), we get a palindrome (589565985).

The spelling of 265530423 in words is "two hundred sixty-five million, five hundred thirty thousand, four hundred twenty-three".