4255870785523 has 12 divisors (see below), whose sum is σ = 4981079276040. Its totient is φ = 3625509549312.

The previous prime is 4255870785487. The next prime is 4255870785533. The reversal of 4255870785523 is 3255870785524.

It is not a de Polignac number, because 4255870785523 - 2⁹ = 4255870785011 is a prime.

It is a super-2 number, since 2×4255870785523² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4255870785533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266416878 + ... + 266432851.

It is an arithmetic number, because the mean of its divisors is an integer number (415089939670).

Almost surely, 2^{4255870785523} is an apocalyptic number.

4255870785523 is a deficient number, since it is larger than the sum of its proper divisors (725208490517).

4255870785523 is a wasteful number, since it uses less digits than its factorization.

4255870785523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532849906 (or 532849899 counting only the distinct ones).

The product of its (nonzero) digits is 94080000, while the sum is 61.

Subtracting from 4255870785523 its reverse (3255870785524), we obtain a palindrome (999999999999).

The spelling of 4255870785523 in words is "four trillion, two hundred fifty-five billion, eight hundred seventy million, seven hundred eighty-five thousand, five hundred twenty-three".