265560040 has 16 divisors (see below), whose sum is σ = 597510180. Its totient is φ = 106224000.

The previous prime is 265560037. The next prime is 265560067. The reversal of 265560040 is 40065562.

It can be written as a sum of positive squares in 2 ways, for example, as 264973284 + 586756 = 16278^2 + 766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 265559990 and 265560008.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3319461 + ... + 3319540.

Almost surely, 2^265560040 is an apocalyptic number.

265560040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265560040 is an abundant number, since it is smaller than the sum of its proper divisors (331950140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265560040 is a wasteful number, since it uses less digits than its factorization.

265560040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639012 (or 6639008 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 265560040 is about 16296.0130093222. The cubic root of 265560040 is about 642.7679916818.

The spelling of 265560040 in words is "two hundred sixty-five million, five hundred sixty thousand, forty".