4256185516 has 48 divisors (see below), whose sum is σ = 8561387520. Its totient is φ = 1831032000.

The previous prime is 4256185499. The next prime is 4256185543. The reversal of 4256185516 is 6155816524.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228026 + ... + 1231486.

It is an arithmetic number, because the mean of its divisors is an integer number (178362240).

Almost surely, 2^4256185516 is an apocalyptic number.

It is an amenable number.

4256185516 is an abundant number, since it is smaller than the sum of its proper divisors (4305202004).

4256185516 is a wasteful number, since it uses less digits than its factorization.

4256185516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966 (or 4964 counting only the distinct ones).

The product of its digits is 288000, while the sum is 43.

The square root of 4256185516 is about 65239.4475451778. The cubic root of 4256185516 is about 1620.5913499310.

It can be divided in two parts, 425618 and 5516, that added together give a palindrome (431134).

The spelling of 4256185516 in words is "four billion, two hundred fifty-six million, one hundred eighty-five thousand, five hundred sixteen".