7825855305 has 32 divisors (see below), whose sum is σ = 12834112896. Its totient is φ = 4069868544.

The previous prime is 7825855283. The next prime is 7825855309. The reversal of 7825855305 is 5035585287.

It is not a de Polignac number, because 7825855305 - 2⁶ = 7825855241 is a prime.

It is a super-2 number, since 2×7825855305² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825855309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385489 + ... + 405281.

It is an arithmetic number, because the mean of its divisors is an integer number (401066028).

Almost surely, 2^7825855305 is an apocalyptic number.

It is an amenable number.

7825855305 is a deficient number, since it is larger than the sum of its proper divisors (5008257591).

7825855305 is a wasteful number, since it uses less digits than its factorization.

7825855305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20457.

The product of its (nonzero) digits is 1680000, while the sum is 48.

The square root of 7825855305 is about 88463.8644023649. The cubic root of 7825855305 is about 1985.3813499586.

The spelling of 7825855305 in words is "seven billion, eight hundred twenty-five million, eight hundred fifty-five thousand, three hundred five".