265012020 has 192 divisors, whose sum is σ = 1014935040. Its totient is φ = 55904256.

The previous prime is 265012009. The next prime is 265012067. The reversal of 265012020 is 20210562.

265012020 is a `hidden beast` number, since 2 + 650 + 12 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 265011984 and 265012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46444 + ... + 51836.

It is an arithmetic number, because the mean of its divisors is an integer number (5286120).

Almost surely, 2^265012020 is an apocalyptic number.

265012020 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 265012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507467520).

265012020 is an abundant number, since it is smaller than the sum of its proper divisors (749923020).

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

265012020 is a wasteful number, since it uses less digits than its factorization.

265012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431 (or 5423 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 265012020 is about 16279.1897832785. The cubic root of 265012020 is about 642.3255402016.

Adding to 265012020 its reverse (20210562), we get a palindrome (285222582).

The spelling of 265012020 in words is "two hundred sixty-five million, twelve thousand, twenty".