8255786540 has 12 divisors (see below), whose sum is σ = 17337151776. Its totient is φ = 3302314608.

The previous prime is 8255786507. The next prime is 8255786563. The reversal of 8255786540 is 456875528.

It is a super-2 number, since 2×8255786540² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206394644 + ... + 206394683.

It is an arithmetic number, because the mean of its divisors is an integer number (1444762648).

Almost surely, 2^8255786540 is an apocalyptic number.

It is an amenable number.

8255786540 is an abundant number, since it is smaller than the sum of its proper divisors (9081365236).

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

8255786540 is a wasteful number, since it uses less digits than its factorization.

8255786540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412789336 (or 412789334 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The square root of 8255786540 is about 90861.3588936463. The cubic root of 8255786540 is about 2021.0923200445.

The spelling of 8255786540 in words is "eight billion, two hundred fifty-five million, seven hundred eighty-six thousand, five hundred forty".