265485480 has 256 divisors, whose sum is σ = 925344000. Its totient is φ = 60742656.

The previous prime is 265485463. The next prime is 265485497. The reversal of 265485480 is 84584562.

It is an interprime number because it is at equal distance from previous prime (265485463) and next prime (265485497).

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 63 ways as a sum of consecutive naturals, for example, 5009134 + ... + 5009186.

It is an arithmetic number, because the mean of its divisors is an integer number (3614625).

Almost surely, 2^265485480 is an apocalyptic number.

265485480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265485480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462672000).

265485480 is an abundant number, since it is smaller than the sum of its proper divisors (659858520).

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

265485480 is a wasteful number, since it uses less digits than its factorization.

265485480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 265485480 is about 16293.7251725933. The cubic root of 265485480 is about 642.7078304375.

The spelling of 265485480 in words is "two hundred sixty-five million, four hundred eighty-five thousand, four hundred eighty".