4256215807 has 8 divisors (see below), whose sum is σ = 4305427632. Its totient is φ = 4207257600.

The previous prime is 4256215793. The next prime is 4256215811. The reversal of 4256215807 is 7085126524.

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

It is a cyclic number.

It is not a de Polignac number, because 4256215807 - 2¹⁹ = 4255691519 is a prime.

It is a super-2 number, since 2×4256215807² = 36230745991513322498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256215807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256215837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29544 + ... + 96877.

It is an arithmetic number, because the mean of its divisors is an integer number (538178454).

Almost surely, 2^4256215807 is an apocalyptic number.

4256215807 is a deficient number, since it is larger than the sum of its proper divisors (49211825).

4256215807 is a wasteful number, since it uses less digits than its factorization.

4256215807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126809.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 4256215807 is about 65239.6796972517. The cubic root of 4256215807 is about 1620.5951944702.

The spelling of 4256215807 in words is "four billion, two hundred fifty-six million, two hundred fifteen thousand, eight hundred seven".