2865260520 has 64 divisors (see below), whose sum is σ = 9550872000. Its totient is φ = 764069184.

The previous prime is 2865260479. The next prime is 2865260521. The reversal of 2865260520 is 250625682.

2865260520 is a `hidden beast` number, since 2 + 86 + 52 + 6 + 0 + 520 = 666.

2865260520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2865260521) 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, 1325430 + ... + 1327589.

It is an arithmetic number, because the mean of its divisors is an integer number (149232375).

Almost surely, 2^2865260520 is an apocalyptic number.

2865260520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2865260520 is an abundant number, since it is smaller than the sum of its proper divisors (6685611480).

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

2865260520 is a wasteful number, since it uses less digits than its factorization.

2865260520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653039 (or 2653029 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 2865260520 is about 53528.1283065268. The cubic root of 2865260520 is about 1420.3260046315.

The spelling of 2865260520 in words is "two billion, eight hundred sixty-five million, two hundred sixty thousand, five hundred twenty".