7855783255 has 8 divisors (see below), whose sum is σ = 9436654224. Its totient is φ = 6278150400.

The previous prime is 7855783231. The next prime is 7855783261. The reversal of 7855783255 is 5523875587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-7855783255 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7855783196 and 7855783205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804186 + ... + 813895.

It is an arithmetic number, because the mean of its divisors is an integer number (1179581778).

Almost surely, 2^7855783255 is an apocalyptic number.

7855783255 is a deficient number, since it is larger than the sum of its proper divisors (1580870969).

7855783255 is a wasteful number, since it uses less digits than its factorization.

7855783255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619057.

The product of its digits is 11760000, while the sum is 55.

The square root of 7855783255 is about 88632.8565205929. The cubic root of 7855783255 is about 1987.9089889438.

The spelling of 7855783255 in words is "seven billion, eight hundred fifty-five million, seven hundred eighty-three thousand, two hundred fifty-five".